Carlos Di Sarli y su Orquesta Típica
type: MusicGroup
genre: tango
popularity: 31
followers: 8866
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-12T19:28:13Z
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album: Tango - An Anthology
  type: MusicAlbum
  date published: 2011-07-15
album: Ofrenda Gaucha: Mate y Milonga
  type: MusicAlbum
  date published: 2017-06-12
album: Historias de Tango
  type: MusicAlbum
  date published: 2015-02-06
  track: Junto a Tu Corazon
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    duration: PT3M1S
    duration ms: 181666
    explicit: false
    by artist: Carlos Di Sarli y su Orquesta Típica
    in album: Historias de Tango
      type: MusicAlbum
      date published: 2015-02-06
    genre: tango
    genre: orquesta-tipica
    genre: vintage-tango
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fb450676ff1dca20b20bcb605b47d9c64c492d731a8821edb9216c2749e75e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBURZ1403838.
      date published: 2026-07-08T03:22:41Z
    audio: Junto a Tu Corazon
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album: El Tango, 2 - 100 Original Recordings
  type: MusicAlbum
  date published: 2015-04-09
album: It's Tango Fever
  type: MusicAlbum
  date published: 2015-05-29
album: Carlos Di Sarli y su orquesta tipica - El señor del tango
  type: MusicAlbum
  date published: 2010-09-21
  track: Porteñito y bailarin
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    duration: PT3M5S
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    by artist: Carlos Di Sarli y su orque...
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd975c1c08a1dcf9e9f0d0527d4a3ab8029fec902fba029a9497a509bfa74f93. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008413.
      date published: 2026-07-08T03:22:41Z
    audio: Porteñito y bailarin
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  track: Verdemar
  track: Un tango.. y nada mas
  track: Cornetin
  track: Acuerdate de mi
album: Porteño y Bailarín
album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
album: Archivo RCA : Carlos Di Sarli Vol. 2
album: Carlos Di Sarli - RCA 100 Años
album: Serie 78 RPM : Carlos Di Sarli Vol.4
album: Buenos Aires Tango 2
album: Amor Y Primavera (Amour Et printemps)
album: Archivo RCA : Carlos Di Sarli Vol. 3
album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
album: Serie 78 RPM : Carlos Di Sarli Vol.3
album: Archivo RCA : Carlos Di Sarli Vol. 1
album: Re Fa Si (El Barrio De Tango Vol. 14 - Original Tango Argentino 1952 - 1953)
album: The Tango Lesson - OST
album: Organito De La Tarde (El Barrio De Tango Vol. 9 - Original Tango Argentino 1942- 1943)
album: The Tango Lesson Soundtrack
album: 100 Años En 100 Tangos
album: Serie 78 RPM : Carlos Di Sarli Vol.2
album: Serie 78 RPM : Carlos Di Sarli Vol.1
album: Inolvidables RCA - 20 Grandes Exitos
album: Buenos Aires Tango Instrumental
album: El Choclo (El Barrio De Tango Vol. 7 - Original Tango Argentino 1940- 1941)
album: El Amanecer (El Barrio De Tango Vol. 11 - Original Tango Argentino 1945- 1947)
album: Assassination Tango
album: Colección Buenos Aires Tango
album: Una Antología del Tango - "Los Binomios"
album: Todo Tango
album: Felicia (El Barrio De Tango Vol. 6 - Original Tango Argentino 1939 - 1940)
album: 100 Tango, Vol. 2 (100 Original Recordings)
album: Solo Tango Para Bailar Vol. 1
album: Locos X El Tango
album: Quejas De Bandoneón (El Barrio De Tango Vol. 10 - Original Tango Argentino 1943- 1944)
album: Archivo RCA: La Década del '50 - Orquestas y Conjuntos
album: Ofrenda Gaucha: Embrujo
album: Una Hora en Buenos Aires, Vol. 1

Tinta Verde - 1ª Versión
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duration: PT2M14S
duration ms: 134440
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300100
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additional property: OTSTimestamp
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  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616711109a1cb8ee290370c48c7f8b7d5ef64621a9d36ff914c316ed3512ae04. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300100.
  date published: 2026-07-02T03:30:09Z
audio: Tinta Verde - 1ª Versión
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Tormenta
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duration: PT3M35S
duration ms: 215613
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400005
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3791d8e433c309e8367218e6885f84c5224b3b98877dd044a18dda3dc9aeb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400005.
  date published: 2026-06-13T15:41:10Z
audio: Tormenta
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Tus Palabras Y La Noche
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by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
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isrc code: ARF035400008
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Tus Palabras Y La Noche
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Derrotado
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in album: Archivo RCA : Carlos Di Sarli Vol. 2
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genre: tango
genre: orquesta-tipica
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81c6f62d4f0f0d7155a9f5208cb5d94adefd75ff1354815e4312e3cebc61f039
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600040
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c6f62d4f0f0d7155a9f5208cb5d94adefd75ff1354815e4312e3cebc61f039. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600040.
  date published: 2026-06-13T15:41:10Z
audio: Derrotado
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.523
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.383
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.713
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.465
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.907
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Energy
type: PropertyValue
value: 0.348

Speechiness
type: PropertyValue
value: 0.08

Acousticness
type: PropertyValue
value: 0.984

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.193

Valence (Positivity)
type: PropertyValue
value: 0.466

Loudness (dB)
type: PropertyValue
value: -13.821

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Verdemar
type: MusicRecording
duration: PT2M51S
duration ms: 171493
explicit: false
by artist: Carlos Di Sarli y su orque...
in album: Carlos Di Sarli y su orquesta tipica - El señor del tango
  type: MusicAlbum
  date published: 2010-09-21
isrc code: ARG991008415
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:23:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0d7536f90ebf2805c772f2d5797ea9047e3ed59e56ad2eb68d92a9139c4576e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008415
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d7536f90ebf2805c772f2d5797ea9047e3ed59e56ad2eb68d92a9139c4576e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008415.
  date published: 2026-07-08T03:20:19Z
audio: Verdemar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.821
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.336
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.358
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.971
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Un tango.. y nada mas
type: MusicRecording
duration: PT2M45S
duration ms: 165906
explicit: false
by artist: Carlos Di Sarli y su orque...
in album: Carlos Di Sarli y su orquesta tipica - El señor del tango
  type: MusicAlbum
  date published: 2010-09-21
isrc code: ARG991008416
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:37:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83b2f10cf2f018a3f6abd73e44d5349c4b95f431f355542e9ce66f34e5b2adc4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008416
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b2f10cf2f018a3f6abd73e44d5349c4b95f431f355542e9ce66f34e5b2adc4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008416.
  date published: 2026-07-07T18:39:05Z
audio: Un tango.. y nada mas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.663
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.431
  additional property: Energy
    type: PropertyValue
    value: 0.367
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.687
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.002
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Cornetin
type: MusicRecording
duration: PT3M18S
duration ms: 198400
explicit: false
by artist: Carlos Di Sarli y su orque...
in album: Carlos Di Sarli y su orquesta tipica - El señor del tango
  type: MusicAlbum
  date published: 2010-09-21
isrc code: ARG991008421
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:23:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed87c9ed26b5ceee9da65ce4b8a4aad0ed1f8bbdd984bdf1e4a4e6e19d07a949
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008421
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed87c9ed26b5ceee9da65ce4b8a4aad0ed1f8bbdd984bdf1e4a4e6e19d07a949. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008421.
  date published: 2026-07-08T03:20:19Z
audio: Cornetin
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.368
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.127
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.668
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.215
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Acuerdate de mi
type: MusicRecording
duration: PT2M50S
duration ms: 170226
explicit: false
by artist: Carlos Di Sarli y su orque...
in album: Carlos Di Sarli y su orquesta tipica - El señor del tango
  type: MusicAlbum
  date published: 2010-09-21
isrc code: ARG991008426
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:20:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1a297245a6d06bc42d560351f765694b4ec30f82087b3610d3020020ed160bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008426
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a297245a6d06bc42d560351f765694b4ec30f82087b3610d3020020ed160bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991008426.
  date published: 2026-07-08T03:53:27Z
audio: Acuerdate de mi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.299
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.341
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.7
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.781
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Porteño y Bailarín
type: MusicAlbum
date published: 1995-04-16
track: Siete Palabras
  type: MusicRecording
  duration: PT2M38S
  duration ms: 158333
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Porteño y Bailarín
    type: MusicAlbum
    date published: 1995-04-16
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: NLHR52070948
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T13:11:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeb98c6a45cab8c8890731a7c0864aff4b12744fde0274c623686e09031980727
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070948
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb98c6a45cab8c8890731a7c0864aff4b12744fde0274c623686e09031980727. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070948.
    date published: 2026-07-02T03:55:08Z
  audio: Siete Palabras
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.804
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.674
    additional property: Energy
      type: PropertyValue
      value: 0.18
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.854
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.644
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.746
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Soy Aquel Viajero
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168466
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  by artist: Alberto Podestá
  in album: Porteño y Bailarín
    type: MusicAlbum
    date published: 1995-04-16
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: NLHR52070952
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:18:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xad0e537428a1f1b8de1658946d5dc4acad31c96a03e082be3058553ca3f6cd2b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070952
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0e537428a1f1b8de1658946d5dc4acad31c96a03e082be3058553ca3f6cd2b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070952.
    date published: 2026-07-08T03:22:41Z
  audio: Soy Aquel Viajero
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.009
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.456
    additional property: Energy
      type: PropertyValue
      value: 0.438
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.958
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.014
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.704
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.758
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: De Vuelta
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169800
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  by artist: Alberto Podestá
  in album: Porteño y Bailarín
    type: MusicAlbum
    date published: 1995-04-16
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: NLHR52070956
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T23:09:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa5fba00d12cfd06178468752c90637afa512af2f2379471393d9a2b8f61e7aa8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: De Vuelta
track: El Opio
track: La Morocha
track: Quejas de Bandoneón
track: El Distinguido Ciudadano
track: Porteño y Bailarín
track: Al Compás del Corazón

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070956

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fba00d12cfd06178468752c90637afa512af2f2379471393d9a2b8f61e7aa8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070956.
date published: 2026-07-08T03:22:41Z

De Vuelta
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.785
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.499
additional property: Energy
  type: PropertyValue
  value: 0.289
additional property: Speechiness
  type: PropertyValue
  value: 0.065
additional property: Acousticness
  type: PropertyValue
  value: 0.981
additional property: Instrumentalness
  type: PropertyValue
  value: 0.75
additional property: Liveness
  type: PropertyValue
  value: 0.522
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.372
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.799
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

El Opio
type: MusicRecording
duration: PT2M45S
duration ms: 165226
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070968
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:20:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6949dacef4d19cbaf1f235ff97056ed9b0007f0dffbf82d277f28578079e4fe6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070968
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6949dacef4d19cbaf1f235ff97056ed9b0007f0dffbf82d277f28578079e4fe6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070968.
  date published: 2026-07-08T03:53:27Z
audio: El Opio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.135
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.537
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.219
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.509
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.31
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Morocha
type: MusicRecording
duration: PT2M43S
duration ms: 163893
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070974
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:45:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fb1b3ce0fd5f6f08254f7d77064e4b926a2d642f22a04cf394ca8c7a4615017
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070974
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb1b3ce0fd5f6f08254f7d77064e4b926a2d642f22a04cf394ca8c7a4615017. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070974.
  date published: 2026-07-08T08:56:20Z
audio: La Morocha
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.82
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.563
  additional property: Energy
    type: PropertyValue
    value: 0.241
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.376
  additional property: Liveness
    type: PropertyValue
    value: 0.257
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.603
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.061
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Quejas de Bandoneón
type: MusicRecording
duration: PT2M16S
duration ms: 136306
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070976
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:03:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52bcf563da23cf3ca563198993742f72fecc1ca0293ca57b392384b907bb8f41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070976
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bcf563da23cf3ca563198993742f72fecc1ca0293ca57b392384b907bb8f41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070976.
  date published: 2026-07-08T03:22:41Z
audio: Quejas de Bandoneón
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.011
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.424
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.815
  additional property: Liveness
    type: PropertyValue
    value: 0.303
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.426
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.579
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Distinguido Ciudadano
type: MusicRecording
duration: PT2M24S
duration ms: 144266
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070980
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:42:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc66e369428e23c7c03bb793648610bb3e1f6ccf3cbbeaa1b5e028dce851d9166
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070980
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66e369428e23c7c03bb793648610bb3e1f6ccf3cbbeaa1b5e028dce851d9166. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070980.
  date published: 2026-07-08T08:56:20Z
audio: El Distinguido Ciudadano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.939
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.512
  additional property: Energy
    type: PropertyValue
    value: 0.24
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.92
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.874
  additional property: Liveness
    type: PropertyValue
    value: 0.355
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.482
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.811
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Porteño y Bailarín
type: MusicRecording
duration: PT3M26S
duration ms: 206573
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
by artist: Mario Pomar
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070982
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T13:11:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd14ff1eb153ba6f8a6b8641e28974bf00d326f8a3342c1482b6b1714196a8afe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070982
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14ff1eb153ba6f8a6b8641e28974bf00d326f8a3342c1482b6b1714196a8afe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070982.
  date published: 2026-07-02T03:55:08Z
audio: Porteño y Bailarín
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.564
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.436
  additional property: Energy
    type: PropertyValue
    value: 0.224
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.186
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.358
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.087
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Al Compás del Corazón
type: MusicRecording
duration: PT3M33S
duration ms: 213066
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
by artist: Oscar Serpa
in album: Porteño y Bailarín
  type: MusicAlbum
  date published: 1995-04-16
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: NLHR52070984
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:43:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x565d7a7d147b79e3c03255d88ee34d533fb907dc6b3dd3b4390794a191c7bb0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070984
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565d7a7d147b79e3c03255d88ee34d533fb907dc6b3dd3b4390794a191c7bb0a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52070984.
  date published: 2026-07-08T03:39:04Z
audio: Al Compás del Corazón
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.021
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.503
  additional property: Energy
    type: PropertyValue
    value: 0.207
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.371
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.711
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
type: MusicAlbum
date published: 2000-06-01
track: Tinta Verde - 1ª Versión
track: La Racha
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153960
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
    type: MusicAlbum
    date published: 2000-06-01
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039300101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T03:32:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101.
    date published: 2026-06-13T15:41:10Z
  audio: La Racha
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.355
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.2
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.847
    additional property: Liveness
      type: PropertyValue
      value: 0.134
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.538
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.859
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: A La Gran Muñeca - 2ª Versión
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163146
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
    type: MusicAlbum
    date published: 2000-06-01
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T11:46:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036.
    date published: 2026-06-13T13:32:09Z
  audio: A La Gran Muñeca - 2ª Versión
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.163
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.494
    additional property: Energy
      type: PropertyValue
      value: 0.347
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.807
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.878
    additional property: Liveness
      type: PropertyValue
      value: 0.254
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.424
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.46
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Cuidado Con Los 50
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197640
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
    type: MusicAlbum
    date published: 2000-06-01
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039300103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T15:07:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x54462a306b2db6b384c1c26bb73857310809a03e55afcdf6b5b61645a8d21b9a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Cuidado Con Los 50
track: Organito De La Tarde - 2ª Versión
track: El Choclo
track: El Amanecer
track: El Once - 2ª Versión
track: El Ingeniero - 2ª Versión
track: Comme Il Faut - 2ª Versión
track: Don Juan - 2ª Versión
track: Germaine - 2ª Versión
track: Viviani - 2ª Versión
track: Rodríguez Peña - 2ª Versión
track: Cara Sucia
track: Bahía Blanca - Instrumental

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953528

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300103

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54462a306b2db6b384c1c26bb73857310809a03e55afcdf6b5b61645a8d21b9a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300103.
date published: 2026-06-13T15:41:10Z

Cuidado Con Los 50
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 128.433
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.639
additional property: Energy
  type: PropertyValue
  value: 0.34
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.937
additional property: Instrumentalness
  type: PropertyValue
  value: 0.898
additional property: Liveness
  type: PropertyValue
  value: 0.133
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.491
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.612
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Organito De La Tarde - 2ª Versión
type: MusicRecording
duration: PT2M43S
duration ms: 163800
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:53:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001.
  date published: 2026-06-13T15:41:10Z
audio: Organito De La Tarde - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.899
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.557
  additional property: Energy
    type: PropertyValue
    value: 0.361
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.9
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.36
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.519
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Choclo
type: MusicRecording
duration: PT2M46S
duration ms: 166213
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T21:35:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f939cc04e4c6b5f66f19fe8a396933e668c3a27d22cd0ef5bdd888a2bf1cd9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f939cc04e4c6b5f66f19fe8a396933e668c3a27d22cd0ef5bdd888a2bf1cd9e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300105.
  date published: 2026-06-13T13:32:09Z
audio: El Choclo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.913
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.601
  additional property: Energy
    type: PropertyValue
    value: 0.54
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.913
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.438
  additional property: Liveness
    type: PropertyValue
    value: 0.297
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.655
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.654
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Amanecer
type: MusicRecording
duration: PT2M26S
duration ms: 146626
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300115
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:48:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115.
  date published: 2026-06-13T15:41:10Z
audio: El Amanecer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.896
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.603
  additional property: Energy
    type: PropertyValue
    value: 0.501
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.825
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.712
  additional property: Liveness
    type: PropertyValue
    value: 0.408
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.553
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.382
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Once - 2ª Versión
type: MusicRecording
duration: PT2M45S
duration ms: 165040
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:48:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060.
  date published: 2026-06-13T15:41:10Z
audio: El Once - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.015
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.64
  additional property: Energy
    type: PropertyValue
    value: 0.459
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.882
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.608
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.149
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Ingeniero - 2ª Versión
type: MusicRecording
duration: PT3M14S
duration ms: 194293
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T07:23:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000.
  date published: 2026-07-02T03:55:08Z
audio: El Ingeniero - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.056
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.634
  additional property: Energy
    type: PropertyValue
    value: 0.383
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.845
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.647
  additional property: Liveness
    type: PropertyValue
    value: 0.307
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.405
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.73
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Comme Il Faut - 2ª Versión
type: MusicRecording
duration: PT2M30S
duration ms: 150413
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:44:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107.
  date published: 2026-06-13T17:25:41Z
audio: Comme Il Faut - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.597
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.643
  additional property: Energy
    type: PropertyValue
    value: 0.38
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.781
  additional property: Liveness
    type: PropertyValue
    value: 0.234
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.484
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.328
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Don Juan - 2ª Versión
type: MusicRecording
duration: PT2M45S
duration ms: 165053
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T22:48:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014.
  date published: 2026-06-13T13:32:09Z
audio: Don Juan - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.656
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.706
  additional property: Energy
    type: PropertyValue
    value: 0.384
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.831
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.932
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.492
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.715
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Germaine - 2ª Versión
type: MusicRecording
duration: PT3M9S
duration ms: 189960
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T19:06:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052.
  date published: 2026-07-02T03:55:08Z
audio: Germaine - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.266
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.538
  additional property: Energy
    type: PropertyValue
    value: 0.356
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.285
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.345
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.176
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Viviani - 2ª Versión
type: MusicRecording
duration: PT2M57S
duration ms: 177173
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:57:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8533c51b835310e2bec0e377560e4495b084ac3e5fb1197aeb2196139e1278e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600066
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533c51b835310e2bec0e377560e4495b084ac3e5fb1197aeb2196139e1278e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600066.
  date published: 2026-06-13T17:25:41Z
audio: Viviani - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.074
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.58
  additional property: Energy
    type: PropertyValue
    value: 0.208
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.818
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.819
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.467
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.984
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Rodríguez Peña - 2ª Versión
type: MusicRecording
duration: PT3M17S
duration ms: 197706
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T19:02:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x672bc6c59982b4eb5c1a06d8a87c0c492c2d49b95f5acea74de89a93001b8880
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672bc6c59982b4eb5c1a06d8a87c0c492c2d49b95f5acea74de89a93001b8880. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600063.
  date published: 2026-07-02T03:55:08Z
audio: Rodríguez Peña - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.936
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.671
  additional property: Energy
    type: PropertyValue
    value: 0.362
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.822
  additional property: Liveness
    type: PropertyValue
    value: 0.204
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.601
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.583
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cara Sucia
type: MusicRecording
duration: PT2M44S
duration ms: 164920
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:57:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064.
  date published: 2026-06-13T17:25:41Z
audio: Cara Sucia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.047
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.358
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.839
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.568
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.406
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bahía Blanca - Instrumental
type: MusicRecording
duration: PT2M50S
duration ms: 170746
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Solo Tango: Carlos Di Sarli - Instrumental Vol. 1
  type: MusicAlbum
  date published: 2000-06-01
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T22:51:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
  date published: 2026-06-13T15:41:10Z
audio: Bahía Blanca - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.24
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.438
  additional property: Energy
    type: PropertyValue
    value: 0.327
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.913
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.87
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.39
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.783
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Archivo RCA : Carlos Di Sarli Vol. 2
type: MusicAlbum
date published: 2002-07-15
track: Don Jose Maria
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163613
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 2
    type: MusicAlbum
    date published: 2002-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T00:16:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xea6788e1a99d9b83fe427143d2a85218648494485a5eecd6eeb9af262d146790
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400004
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6788e1a99d9b83fe427143d2a85218648494485a5eecd6eeb9af262d146790. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400004.
    date published: 2026-07-02T03:55:08Z
  audio: Don Jose Maria
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.018
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.67
    additional property: Energy
      type: PropertyValue
      value: 0.324
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.711
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.832
    additional property: Liveness
      type: PropertyValue
      value: 0.275
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.513
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.401
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tormenta
track: Tus Palabras Y La Noche
track: Bar Exposición
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162946
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 2
    type: MusicAlbum
    date published: 2002-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400009
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T13:53:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe38d598efe3ad0bfbe4810226be1775679bfbc75dcc65e9f09c43ed0261671b4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400009
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d598efe3ad0bfbe4810226be1775679bfbc75dcc65e9f09c43ed0261671b4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400009.
    date published: 2026-07-02T03:30:09Z
  audio: Bar Exposición
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.632
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.777
    additional property: Energy
      type: PropertyValue
      value: 0.295
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.707
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.514
    additional property: Liveness
      type: PropertyValue
      value: 0.058
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.523
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.492
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Bailemos
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186706
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 2
    type: MusicAlbum
    date published: 2002-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035500021
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T22:41:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3bc083298de599af6cac1e9b3aeea913fba74767fede4eea6f12b8097368f024
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bailemos
track: De Que Podemos Hablar
track: Novia Provinciana
track: Derrotado
track: Lo Que Me Hablaron De Vos
track: No Me Hablen De Ella
track: Buenas Noches Buenos Aires

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500021

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc083298de599af6cac1e9b3aeea913fba74767fede4eea6f12b8097368f024. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500021.
date published: 2026-07-02T03:55:08Z

Bailemos
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 125.47
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.532
additional property: Energy
  type: PropertyValue
  value: 0.336
additional property: Speechiness
  type: PropertyValue
  value: 0.057
additional property: Acousticness
  type: PropertyValue
  value: 0.831
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.277
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.332
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.573
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor

De Que Podemos Hablar
type: MusicRecording
duration: PT3M4S
duration ms: 184293
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600036
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:44:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x853f2c1f69a31b5aa5c6ab192f54bf21b5a620686415d0c6147d90863747415a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600036
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853f2c1f69a31b5aa5c6ab192f54bf21b5a620686415d0c6147d90863747415a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600036.
  date published: 2026-07-02T11:34:59Z
audio: De Que Podemos Hablar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.254
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.509
  additional property: Energy
    type: PropertyValue
    value: 0.315
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.45
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.392
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.547
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Novia Provinciana
type: MusicRecording
duration: PT2M59S
duration ms: 179066
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:45:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9df3fb3be7df4475d1f027e153bd2583d9ad4a36405da298419f04bb27554421
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600038
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df3fb3be7df4475d1f027e153bd2583d9ad4a36405da298419f04bb27554421. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600038.
  date published: 2026-07-02T11:34:59Z
audio: Novia Provinciana
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.379
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.431
  additional property: Energy
    type: PropertyValue
    value: 0.366
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.896
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.341
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.476
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.742
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lo Que Me Hablaron De Vos
type: MusicRecording
duration: PT3M10S
duration ms: 190320
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700039
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:51:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9877eb7a5a72f37f245966e4a85e4adebe532b5bcf3752c09ae68f4da77b0bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700039
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9877eb7a5a72f37f245966e4a85e4adebe532b5bcf3752c09ae68f4da77b0bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700039.
  date published: 2026-07-08T03:22:41Z
audio: Lo Que Me Hablaron De Vos
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.808
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.455
  additional property: Energy
    type: PropertyValue
    value: 0.36
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.887
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.338
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.539
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.701
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

No Me Hablen De Ella
type: MusicRecording
duration: PT3M2S
duration ms: 182080
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:18:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85d2f09def3725ed5cfc833383a084f068330e407a90753a03034e400e7cf6c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700042
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d2f09def3725ed5cfc833383a084f068330e407a90753a03034e400e7cf6c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700042.
  date published: 2026-07-08T03:20:19Z
audio: No Me Hablen De Ella
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.955
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.414
  additional property: Energy
    type: PropertyValue
    value: 0.364
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.806
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.445
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.435
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Buenas Noches Buenos Aires
type: MusicRecording
duration: PT3M12S
duration ms: 192213
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 2
  type: MusicAlbum
  date published: 2002-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035800017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:24:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b7f9e0e9342146227c6d2b88d57d56a407083297bb5f3f36b00add2fb2a63a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035800017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7f9e0e9342146227c6d2b88d57d56a407083297bb5f3f36b00add2fb2a63a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035800017.
  date published: 2026-07-08T08:56:20Z
audio: Buenas Noches Buenos Aires
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.337
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.338
  additional property: Energy
    type: PropertyValue
    value: 0.387
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.873
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.33
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.461
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.718
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Carlos Di Sarli - RCA 100 Años
type: MusicAlbum
date published: 2001-06-07
track: Bahía Blanca - Instrumental
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171466
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Carlos Di Sarli - RCA 100 Años
    type: MusicAlbum
    date published: 2001-06-07
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039300109
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T22:51:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957050
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957050
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:41:13Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
    date published: 2026-07-07T14:41:13Z
  audio: Bahía Blanca - Instrumental
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.422
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.471
    additional property: Energy
      type: PropertyValue
      value: 0.305
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.789
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.139
    additional property: Liveness
      type: PropertyValue
      value: 0.063
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.373
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.59
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Milonguero Viejo - 3ª Versión
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166733
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Carlos Di Sarli - RCA 100 Años
    type: MusicAlbum
    date published: 2001-06-07
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035500041
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T21:37:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5ed3f18a465eda1fae3400fb4cdc97bc7a85c8945c2af27bd49e3cc26b95307c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500041
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed3f18a465eda1fae3400fb4cdc97bc7a85c8945c2af27bd49e3cc26b95307c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500041.
    date published: 2026-06-13T13:32:09Z
  audio: Milonguero Viejo - 3ª Versión
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.535
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.587
    additional property: Energy
      type: PropertyValue
      value: 0.391
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.843
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.661
    additional property: Liveness
      type: PropertyValue
      value: 0.39
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.463
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.022
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Rodríguez Peña - 2ª Versión
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198333
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Carlos Di Sarli - RCA 100 Años
    type: MusicAlbum
    date published: 2001-06-07
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035600063
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T19:02:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x672bc6c59982b4eb5c1a06d8a87c0c492c2d49b95f5acea74de89a93001b8880
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Rodríguez Peña - 2ª Versión
track: Buenos Aires
track: La Cumparsita - 2ª Versión
track: Don Juan - 2ª Versión
track: A La Gran Muñeca - 2ª Versión
track: Comme Il Faut - 2ª Versión
track: Nueve Puntos - 2ª Versión
track: El Ingeniero - 2ª Versión
track: El Once - 2ª Versión
track: Germaine - 2ª Versión
track: El Jagüel - 2ª Versión
track: El Amanecer
track: Organito De La Tarde - 2ª Versión
track: Cara Sucia
track: Viviani - 2ª Versión
track: El Choclo

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600063

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672bc6c59982b4eb5c1a06d8a87c0c492c2d49b95f5acea74de89a93001b8880. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600063.
date published: 2026-07-08T03:20:19Z

Rodríguez Peña - 2ª Versión
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 128.743
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.697
additional property: Energy
  type: PropertyValue
  value: 0.262
additional property: Speechiness
  type: PropertyValue
  value: 0.033
additional property: Acousticness
  type: PropertyValue
  value: 0.872
additional property: Instrumentalness
  type: PropertyValue
  value: 0.612
additional property: Liveness
  type: PropertyValue
  value: 0.244
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.524
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.621
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Buenos Aires
type: MusicRecording
duration: PT2M38S
duration ms: 158426
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:47:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b7e673cfa8f8454b3668618d8626cd9a72d41495698bbee41897024c8452c48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e673cfa8f8454b3668618d8626cd9a72d41495698bbee41897024c8452c48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500001.
  date published: 2026-07-08T03:20:19Z
audio: Buenos Aires
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.387
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.392
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.842
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.181
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.639
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.875
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Cumparsita - 2ª Versión
type: MusicRecording
duration: PT3M16S
duration ms: 196133
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500234
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T04:00:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae2e97bc0f18ce2e4948188dff86730dbe423416386800d42c2027417d1f9a09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e97bc0f18ce2e4948188dff86730dbe423416386800d42c2027417d1f9a09. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234.
  date published: 2026-07-02T03:55:08Z
audio: La Cumparsita - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.016
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.551
  additional property: Energy
    type: PropertyValue
    value: 0.31
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.88
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.743
  additional property: Liveness
    type: PropertyValue
    value: 0.233
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.489
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.429
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Don Juan - 2ª Versión
type: MusicRecording
duration: PT2M45S
duration ms: 165360
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T22:48:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014.
  date published: 2026-07-06T06:56:49Z
audio: Don Juan - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.479
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.743
  additional property: Energy
    type: PropertyValue
    value: 0.259
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.559
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.767
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.536
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

A La Gran Muñeca - 2ª Versión
type: MusicRecording
duration: PT2M41S
duration ms: 161906
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400036
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:46:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957055
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T15:12:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036.
  date published: 2026-07-07T15:12:44Z
audio: A La Gran Muñeca - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.871
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.44
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.796
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.939
  additional property: Liveness
    type: PropertyValue
    value: 0.409
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.363
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.558
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Comme Il Faut - 2ª Versión
type: MusicRecording
duration: PT2M31S
duration ms: 151293
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:44:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107.
  date published: 2026-07-02T05:09:12Z
audio: Comme Il Faut - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.579
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.682
  additional property: Energy
    type: PropertyValue
    value: 0.272
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.811
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.526
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.377
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.11
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nueve Puntos - 2ª Versión
type: MusicRecording
duration: PT3M24S
duration ms: 204960
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T22:49:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde7ae36bec6560bff23912b7b0dbfc82372b4c665201437b584faa141dd06fbb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7ae36bec6560bff23912b7b0dbfc82372b4c665201437b584faa141dd06fbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500002.
  date published: 2026-06-13T15:41:10Z
audio: Nueve Puntos - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.912
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.531
  additional property: Energy
    type: PropertyValue
    value: 0.248
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.7
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.202
  additional property: Liveness
    type: PropertyValue
    value: 0.334
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.411
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.69
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Ingeniero - 2ª Versión
type: MusicRecording
duration: PT3M13S
duration ms: 193053
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T07:23:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000.
  date published: 2026-07-07T18:39:05Z
audio: El Ingeniero - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.799
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.419
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.838
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.728
  additional property: Liveness
    type: PropertyValue
    value: 0.343
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.389
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.675
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Once - 2ª Versión
type: MusicRecording
duration: PT2M45S
duration ms: 165360
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:48:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060.
  date published: 2026-07-07T18:50:38Z
audio: El Once - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.969
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.662
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.69
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.83
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.549
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.742
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Germaine - 2ª Versión
type: MusicRecording
duration: PT3M12S
duration ms: 192106
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T19:06:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052.
  date published: 2026-07-07T18:50:38Z
audio: Germaine - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.55
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.565
  additional property: Energy
    type: PropertyValue
    value: 0.28
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.882
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.759
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.32
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.664
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Jagüel - 2ª Versión
type: MusicRecording
duration: PT2M49S
duration ms: 169866
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:44:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61a78b6a236b1ce71bcdb09139e78e64f5b80bd2d09c9e131ba30d291e0841ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a78b6a236b1ce71bcdb09139e78e64f5b80bd2d09c9e131ba30d291e0841ae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600065.
  date published: 2026-07-02T11:34:59Z
audio: El Jagüel - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.565
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.538
  additional property: Energy
    type: PropertyValue
    value: 0.308
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.802
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.551
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.436
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.126
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Amanecer
type: MusicRecording
duration: PT2M25S
duration ms: 145680
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300115
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:48:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115.
  date published: 2026-07-08T03:22:41Z
audio: El Amanecer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.503
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.433
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.735
  additional property: Liveness
    type: PropertyValue
    value: 0.462
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.376
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.538
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Organito De La Tarde - 2ª Versión
type: MusicRecording
duration: PT2M42S
duration ms: 162626
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035400001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:53:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001.
  date published: 2026-07-08T03:53:27Z
audio: Organito De La Tarde - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.885
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.49
  additional property: Energy
    type: PropertyValue
    value: 0.471
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.901
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.353
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.439
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cara Sucia
type: MusicRecording
duration: PT2M46S
duration ms: 166360
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:57:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064.
  date published: 2026-07-08T03:20:19Z
audio: Cara Sucia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.837
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.661
  additional property: Energy
    type: PropertyValue
    value: 0.315
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.737
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.474
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.548
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.654
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Viviani - 2ª Versión
type: MusicRecording
duration: PT2M58S
duration ms: 178746
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:57:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8533c51b835310e2bec0e377560e4495b084ac3e5fb1197aeb2196139e1278e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600066
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533c51b835310e2bec0e377560e4495b084ac3e5fb1197aeb2196139e1278e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600066.
  date published: 2026-07-06T06:56:49Z
audio: Viviani - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.94
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.587
  additional property: Energy
    type: PropertyValue
    value: 0.15
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.592
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.716
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.888
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Choclo
type: MusicRecording
duration: PT2M59S
duration ms: 179986
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Carlos Di Sarli - RCA 100 Años
  type: MusicAlbum
  date published: 2001-06-07
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T21:35:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f939cc04e4c6b5f66f19fe8a396933e668c3a27d22cd0ef5bdd888a2bf1cd9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f939cc04e4c6b5f66f19fe8a396933e668c3a27d22cd0ef5bdd888a2bf1cd9e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300105.
  date published: 2026-07-08T03:22:41Z
audio: El Choclo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.303
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.371
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.801
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.276
  additional property: Liveness
    type: PropertyValue
    value: 0.215
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.622
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.326
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Serie 78 RPM : Carlos Di Sarli Vol.4
type: MusicAlbum
date published: 2004-07-15
track: Yo Soy De San Telmo
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137506
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.4
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034300047
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T19:44:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa0f931c3c58b3f086f454d74b9676ce56b0199c97db970006a195bede3b174f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956349
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300047
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f931c3c58b3f086f454d74b9676ce56b0199c97db970006a195bede3b174f3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300047.
    date published: 2026-07-02T11:34:59Z
  audio: Yo Soy De San Telmo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.432
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.479
    additional property: Energy
      type: PropertyValue
      value: 0.464
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.017
    additional property: Liveness
      type: PropertyValue
      value: 0.168
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.884
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.584
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Boedo Y San Juan
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153600
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.4
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034300015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T08:07:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfcea4281ef8169039c86ddf5666aa9ba1cba863c4d74da858005ad5f1e9ac713
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957073
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957073
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300015
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:39:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcea4281ef8169039c86ddf5666aa9ba1cba863c4d74da858005ad5f1e9ac713. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300015.
    date published: 2026-07-07T18:39:05Z
  audio: Boedo Y San Juan
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.083
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.529
    additional property: Energy
      type: PropertyValue
      value: 0.537
    additional property: Speechiness
      type: PropertyValue
      value: 0.089
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.197
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.669
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.192
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Vamos!...
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168866
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.4
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034400029
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T13:56:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa9b634ace03c1a112c3b1b79d476facc628782af6214e9a7825c554f965a69af
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Vamos!...
track: Solamente Ella
track: El Pollo Ricardo - 2ª Versión
track: No Esperaba Verte Mas
track: Gracias
track: La Racha
track: Los 33 Orientales - Versión '48

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034400029

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b634ace03c1a112c3b1b79d476facc628782af6214e9a7825c554f965a69af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034400029.
date published: 2026-07-02T03:55:08Z

Vamos!...
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.155
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.502
additional property: Energy
  type: PropertyValue
  value: 0.44
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.982
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.309
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.626
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.095
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Solamente Ella
type: MusicRecording
duration: PT2M48S
duration ms: 168533
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF030001827
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:45:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3ddcd0b3242077a6a66994dc3ae93e718b2f90659c16a2814d005bf16946ed4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001827
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ddcd0b3242077a6a66994dc3ae93e718b2f90659c16a2814d005bf16946ed4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001827.
  date published: 2026-07-02T11:34:59Z
audio: Solamente Ella
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.043
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.457
  additional property: Energy
    type: PropertyValue
    value: 0.384
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.399
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.416
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.129
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Pollo Ricardo - 2ª Versión
type: MusicRecording
duration: PT2M35S
duration ms: 155120
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF034600049
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:43:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71a876d2b9d221ecc265d21f14849410c1d4cd8c17a0f82637a9df085da67418
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034600049
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a876d2b9d221ecc265d21f14849410c1d4cd8c17a0f82637a9df085da67418. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034600049.
  date published: 2026-07-08T03:20:19Z
audio: El Pollo Ricardo - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.33
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.701
  additional property: Energy
    type: PropertyValue
    value: 0.458
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.85
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.489
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.003
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

No Esperaba Verte Mas
type: MusicRecording
duration: PT2M43S
duration ms: 163333
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF030001834
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T03:56:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bd4072bbb4b02fb08d06be222fa248f706f2b7d4d2518976aa1aea8de6305f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001834
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4072bbb4b02fb08d06be222fa248f706f2b7d4d2518976aa1aea8de6305f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001834.
  date published: 2026-07-02T03:55:08Z
audio: No Esperaba Verte Mas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.101
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.509
  additional property: Energy
    type: PropertyValue
    value: 0.282
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.183
  additional property: Liveness
    type: PropertyValue
    value: 0.328
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.501
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.278
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Gracias
type: MusicRecording
duration: PT2M48S
duration ms: 168880
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF030001835
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T03:58:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x524b58dfed2cca873975d3c6a81f786e1aed8763850e14dc279d1bbe240af19b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001835
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b58dfed2cca873975d3c6a81f786e1aed8763850e14dc279d1bbe240af19b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001835.
  date published: 2026-07-02T03:55:08Z
audio: Gracias
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.72
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.441
  additional property: Energy
    type: PropertyValue
    value: 0.436
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.273
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.707
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.545
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Racha
type: MusicRecording
duration: PT2M36S
duration ms: 156893
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T03:32:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101.
  date published: 2026-07-08T03:20:19Z
audio: La Racha
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.732
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.638
  additional property: Energy
    type: PropertyValue
    value: 0.28
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.237
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.572
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.42
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Los 33 Orientales - Versión '48
type: MusicRecording
duration: PT2M40S
duration ms: 160440
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.4
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF034800034
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:12:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41402a737b9e9c5623d0ace296c635786ec9d3b9fa8922b01c2a27b3a9988754
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034800034
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41402a737b9e9c5623d0ace296c635786ec9d3b9fa8922b01c2a27b3a9988754. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034800034.
  date published: 2026-07-08T03:22:41Z
audio: Los 33 Orientales - Versión '48
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.814
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.744
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.793
  additional property: Liveness
    type: PropertyValue
    value: 0.307
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.52
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.39
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Buenos Aires Tango 2
type: MusicAlbum
date published: 2004-01-13
track: Soñar Y Nada Más
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194453
  explicit: false
  by artist: Aníbal Troilo Y Su Orquesta Típica
  in album: Buenos Aires Tango 2
    type: MusicAlbum
    date published: 2004-01-13
  genre: tango
  isrc code: ARF039701512
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T04:35:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6e757f145c4875bb6513eb0470fe996a87efc284592c10ebdc0cdb8b14916486
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953536
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039701512
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e757f145c4875bb6513eb0470fe996a87efc284592c10ebdc0cdb8b14916486. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039701512.
    date published: 2026-06-13T17:25:41Z
  audio: Soñar Y Nada Más
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 178.366
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.331
    additional property: Energy
      type: PropertyValue
      value: 0.542
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.276
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.592
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.006
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Amor Y Primavera (Amour Et printemps)
type: MusicAlbum
date published: 2018-11-02
track: Chiqué
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195706
  explicit: false
  by artist: Osvaldo Pugliese
  in album: Amor Y Primavera (Amour Et printemps)
    type: MusicAlbum
    date published: 2018-11-02
  isrc code: DEKB71663019
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T16:33:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x095ccca1e6141899c96ac656b2a4f0edc1bf2b3501bd2e9de4dd29d6b6ee22c7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663019
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095ccca1e6141899c96ac656b2a4f0edc1bf2b3501bd2e9de4dd29d6b6ee22c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663019.
    date published: 2026-07-08T03:22:41Z
  audio: Chiqué
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.07
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.456
    additional property: Energy
      type: PropertyValue
      value: 0.364
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.829
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.746
    additional property: Liveness
      type: PropertyValue
      value: 0.214
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.528
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.551
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Amor Y Primavera - Amour Et printemps
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198400
  explicit: false
  by artist: Francisco Canaro Y Su Orquestra Tipica
  in album: Amor Y Primavera (Amour Et printemps)
    type: MusicAlbum
    date published: 2018-11-02
  isrc code: DEKB71663024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:39:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x81cb18ec365c03a41530e68b673a4784e27138593a11f3ea0ed1f91ef71af646
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663024
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb18ec365c03a41530e68b673a4784e27138593a11f3ea0ed1f91ef71af646. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663024.
    date published: 2026-07-08T03:20:19Z
  audio: Amor Y Primavera - Amour Et printemps
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.649
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.453
    additional property: Energy
      type: PropertyValue
      value: 0.256
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.843
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.099
    additional property: Liveness
      type: PropertyValue
      value: 0.217
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.725
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.592
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Griseta
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179920
  explicit: false
  by artist: Carlos Di Sarli Y Su Orquesta
  in album: Amor Y Primavera (Amour Et printemps)
    type: MusicAlbum
    date published: 2018-11-02
  isrc code: DEKB71663027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T14:40:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2cdb0da1463348104a38449042bf334943c5e0943e75157ade1e9f0a8fc78ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663027
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Griseta
track: Parque Patricios

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cdb0da1463348104a38449042bf334943c5e0943e75157ade1e9f0a8fc78ef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663027.
date published: 2026-07-08T03:22:41Z

Griseta
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 132.491
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.5
additional property: Energy
  type: PropertyValue
  value: 0.348
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.961
additional property: Instrumentalness
  type: PropertyValue
  value: 0.541
additional property: Liveness
  type: PropertyValue
  value: 0.378
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.611
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.309
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Parque Patricios
type: MusicRecording
duration: PT2M21S
duration ms: 141040
explicit: false
by artist: Francisco Lomuto y su Orquesta Típica
in album: Amor Y Primavera (Amour Et printemps)
  type: MusicAlbum
  date published: 2018-11-02
isrc code: DEKB71663037
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T04:37:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x367934f4a83dfaef2837578b73454f9c5c21b62f2251c0a3dcdee90ad4504c57
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663037
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367934f4a83dfaef2837578b73454f9c5c21b62f2251c0a3dcdee90ad4504c57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71663037.
  date published: 2026-06-13T17:25:41Z
audio: Parque Patricios
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.303
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.741
  additional property: Energy
    type: PropertyValue
    value: 0.535
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.905
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.707
  additional property: Liveness
    type: PropertyValue
    value: 0.052
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.917
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.234
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Archivo RCA : Carlos Di Sarli Vol. 3
type: MusicAlbum
date published: 2004-07-15
track: Fogon De Huella
  type: MusicRecording
  duration: PT3M31S
  duration ms: 211560
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 3
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035600080
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T04:21:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd507efcec7dafe176fa3b94730b54617b163ba909c0a2d194f5f91f405206cd1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600080
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd507efcec7dafe176fa3b94730b54617b163ba909c0a2d194f5f91f405206cd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600080.
    date published: 2026-07-08T03:22:41Z
  audio: Fogon De Huella
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.498
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.44
    additional property: Energy
      type: PropertyValue
      value: 0.462
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.889
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.131
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.628
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.588
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Por Que Regresas Tu
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185666
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 3
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035600081
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T11:38:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xacc0438ac76751ceb7659c1b9307bf097b24655cc34ddb808a36dd289b9d59e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600081
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc0438ac76751ceb7659c1b9307bf097b24655cc34ddb808a36dd289b9d59e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600081.
    date published: 2026-07-02T05:09:12Z
  audio: Por Que Regresas Tu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.303
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.331
    additional property: Energy
      type: PropertyValue
      value: 0.459
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0.909
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.358
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.387
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.881
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Buenos Aires
  type: MusicRecording
  duration: PT2M38S
  duration ms: 158560
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 3
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035500001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:47:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2b7e673cfa8f8454b3668618d8626cd9a72d41495698bbee41897024c8452c48
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Buenos Aires
track: A La Luz Del Candil
track: Y Todavia Te Quiero
track: Cantemos Corazon
track: Quien Sino Tu
track: Soñemos
track: Nuestra Noche
track: Cara Sucia
track: Whisky
track: Bahía Blanca - Instrumental
track: Donde Estas

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500001

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e673cfa8f8454b3668618d8626cd9a72d41495698bbee41897024c8452c48. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500001.
date published: 2026-07-08T03:22:41Z

Buenos Aires
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 126.737
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.448
additional property: Energy
  type: PropertyValue
  value: 0.45
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.827
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.222
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.643
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.961
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

A La Luz Del Candil
type: MusicRecording
duration: PT3M34S
duration ms: 214106
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600083
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:50:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf89e3857f7021efa3af6482a1607cfce986d046d8d4b9689c3cba1e85cdb448b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600083
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89e3857f7021efa3af6482a1607cfce986d046d8d4b9689c3cba1e85cdb448b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600083.
  date published: 2026-07-08T03:20:19Z
audio: A La Luz Del Candil
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.547
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.504
  additional property: Energy
    type: PropertyValue
    value: 0.398
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.812
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.371
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.386
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.203
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Y Todavia Te Quiero
type: MusicRecording
duration: PT3M19S
duration ms: 199080
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600085
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:00:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8137820a192f15a7be89c0fdc088dabe6d8c3508e96ed749f708b06fd7449588
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8137820a192f15a7be89c0fdc088dabe6d8c3508e96ed749f708b06fd7449588. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600085.
  date published: 2026-07-06T07:53:57Z
audio: Y Todavia Te Quiero
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.059
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.343
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.687
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.238
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.591
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.027
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Cantemos Corazon
type: MusicRecording
duration: PT3M8S
duration ms: 188040
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600087
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T07:23:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cfcfdce40bbced4fb766b05b4584350396f4b0848167842f431e8f800ae62b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600087
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfcfdce40bbced4fb766b05b4584350396f4b0848167842f431e8f800ae62b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600087.
  date published: 2026-07-02T05:09:12Z
audio: Cantemos Corazon
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.833
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.439
  additional property: Energy
    type: PropertyValue
    value: 0.386
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.771
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.504
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.268
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Quien Sino Tu
type: MusicRecording
duration: PT3M21S
duration ms: 201573
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:45:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x922a29df1a1cadf34215a7650d44f392eb648d0554a1d5ea14f6d52d4dae8abc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922a29df1a1cadf34215a7650d44f392eb648d0554a1d5ea14f6d52d4dae8abc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600090.
  date published: 2026-07-08T03:22:41Z
audio: Quien Sino Tu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.787
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.414
  additional property: Energy
    type: PropertyValue
    value: 0.323
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.767
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.342
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.104
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Soñemos
type: MusicRecording
duration: PT2M51S
duration ms: 171186
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700084
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T11:41:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4704fd313606ce5a301a3adf283fac1a5a241ea8bb3f9d071e21b517fe7daac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700084
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4704fd313606ce5a301a3adf283fac1a5a241ea8bb3f9d071e21b517fe7daac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700084.
  date published: 2026-07-02T05:09:12Z
audio: Soñemos
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.215
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.508
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.78
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.351
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.415
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.771
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nuestra Noche
type: MusicRecording
duration: PT2M56S
duration ms: 176520
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700085
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:25:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73c505e0cec8dbb752c79ddf7f65b12d1710ea2d79dc4427f38906cd991bc9f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c505e0cec8dbb752c79ddf7f65b12d1710ea2d79dc4427f38906cd991bc9f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700085.
  date published: 2026-07-08T03:20:19Z
audio: Nuestra Noche
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.395
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.365
  additional property: Energy
    type: PropertyValue
    value: 0.493
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.834
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.273
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.512
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.427
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cara Sucia
type: MusicRecording
duration: PT2M47S
duration ms: 167213
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T11:57:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957056
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957056
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T15:15:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b0b625bebb4496bcd7f0441ecd96312fb1d2ce39ddac6e18a96f84d4e6e01. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700064.
  date published: 2026-07-07T15:15:30Z
audio: Cara Sucia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.773
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.685
  additional property: Energy
    type: PropertyValue
    value: 0.327
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.806
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.662
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.504
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.186
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Whisky
type: MusicRecording
duration: PT2M49S
duration ms: 169106
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035700087
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:40:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11550dbfe474dc98c61331f9747d17bd8070cbb51b6a01f33263f8f14a919239
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700087
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11550dbfe474dc98c61331f9747d17bd8070cbb51b6a01f33263f8f14a919239. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035700087.
  date published: 2026-07-08T08:56:20Z
audio: Whisky
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.932
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.431
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.824
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.525
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.325
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bahía Blanca - Instrumental
type: MusicRecording
duration: PT2M51S
duration ms: 171826
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T22:51:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
  date published: 2026-07-08T08:56:20Z
audio: Bahía Blanca - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.439
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.505
  additional property: Energy
    type: PropertyValue
    value: 0.303
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.589
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.627
  additional property: Liveness
    type: PropertyValue
    value: 0.066
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.406
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.445
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Donde Estas
type: MusicRecording
duration: PT3M28S
duration ms: 208986
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 3
  type: MusicAlbum
  date published: 2004-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035800049
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:13:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e61f27247a8d0967af2a1788a17dc873fcf44339050e702aeac8db84916b9b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035800049
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e61f27247a8d0967af2a1788a17dc873fcf44339050e702aeac8db84916b9b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035800049.
  date published: 2026-07-08T03:53:27Z
audio: Donde Estas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.16
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.333
  additional property: Energy
    type: PropertyValue
    value: 0.425
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0.731
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.466
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.442
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
type: MusicAlbum
date published: 2003-07-15
track: A La Gran Muñeca - 2ª Versión
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165386
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
    type: MusicAlbum
    date published: 2003-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T11:46:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957046
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957046
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:04:01Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57d6c2a1992c5ba34522dbad37e3ab12ee708e68a5eaaf0b2151e13c9ee50dc. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400036.
    date published: 2026-07-07T14:04:01Z
  audio: A La Gran Muñeca - 2ª Versión
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.439
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.515
    additional property: Energy
      type: PropertyValue
      value: 0.305
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.65
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.839
    additional property: Liveness
      type: PropertyValue
      value: 0.189
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.5
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.676
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: El Amanecer
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148320
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
    type: MusicAlbum
    date published: 2003-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039300115
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T08:48:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a1361e29d0c3997a6368fb79215e02375a7ff4162b3c89387746cfbee5fe41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300115.
    date published: 2026-07-08T03:20:19Z
  audio: El Amanecer
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.137
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.614
    additional property: Energy
      type: PropertyValue
      value: 0.275
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.97
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.465
    additional property: Liveness
      type: PropertyValue
      value: 0.242
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.544
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.103
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Organito De La Tarde - 2ª Versión
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167386
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
    type: MusicAlbum
    date published: 2003-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T08:53:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Organito De La Tarde - 2ª Versión
track: Cuidado Con Los 50
track: El Ingeniero - 2ª Versión
track: La Cumparsita - 2ª Versión
track: Milonguero Viejo - 3ª Versión
track: Comme Il Faut - 2ª Versión
track: Los 33 Orientales
track: Loca

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957061

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957061

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001

OTSTimestamp
type: PropertyValue
value: 2026-07-07T16:07:00Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf446d59a8b7d34723608018061884cab9035e6ea435a8a1dabfd4bb94767ef. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400001.
date published: 2026-07-07T16:07:00Z

Organito De La Tarde - 2ª Versión
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 128.299
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.563
additional property: Energy
  type: PropertyValue
  value: 0.3
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.852
additional property: Instrumentalness
  type: PropertyValue
  value: 0.82
additional property: Liveness
  type: PropertyValue
  value: 0.133
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.5
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.276
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Cuidado Con Los 50
type: MusicRecording
duration: PT3M19S
duration ms: 199946
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:07:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54462a306b2db6b384c1c26bb73857310809a03e55afcdf6b5b61645a8d21b9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300103
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54462a306b2db6b384c1c26bb73857310809a03e55afcdf6b5b61645a8d21b9a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300103.
  date published: 2026-07-06T06:56:49Z
audio: Cuidado Con Los 50
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.783
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.655
  additional property: Energy
    type: PropertyValue
    value: 0.317
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.84
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.927
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.47
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.426
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

El Ingeniero - 2ª Versión
type: MusicRecording
duration: PT3M17S
duration ms: 197040
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T07:23:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08479e0e4745853b17d39a1f296c1ad54b6ad67f83fac5575dbb318079f47db0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500000.
  date published: 2026-07-08T03:22:41Z
audio: El Ingeniero - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.252
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.636
  additional property: Energy
    type: PropertyValue
    value: 0.289
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.755
  additional property: Liveness
    type: PropertyValue
    value: 0.243
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.318
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.572
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Cumparsita - 2ª Versión
type: MusicRecording
duration: PT3M16S
duration ms: 196813
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500234
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T04:00:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae2e97bc0f18ce2e4948188dff86730dbe423416386800d42c2027417d1f9a09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e97bc0f18ce2e4948188dff86730dbe423416386800d42c2027417d1f9a09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234.
  date published: 2026-07-08T03:53:27Z
audio: La Cumparsita - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.043
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.55
  additional property: Energy
    type: PropertyValue
    value: 0.313
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.9
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.652
  additional property: Liveness
    type: PropertyValue
    value: 0.188
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.453
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.448
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Milonguero Viejo - 3ª Versión
type: MusicRecording
duration: PT2M46S
duration ms: 166906
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T21:37:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ed3f18a465eda1fae3400fb4cdc97bc7a85c8945c2af27bd49e3cc26b95307c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957052
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957052
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500041
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:50:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed3f18a465eda1fae3400fb4cdc97bc7a85c8945c2af27bd49e3cc26b95307c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500041.
  date published: 2026-07-07T14:50:41Z
audio: Milonguero Viejo - 3ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.563
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.379
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.856
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.443
  additional property: Liveness
    type: PropertyValue
    value: 0.343
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.571
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.677
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Comme Il Faut - 2ª Versión
type: MusicRecording
duration: PT2M31S
duration ms: 151186
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T08:44:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9d149d7f17ef60b718058e24328eea9840d68caf6d097e03fe7f548bac3f60. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300107.
  date published: 2026-07-08T03:22:41Z
audio: Comme Il Faut - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.573
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.687
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.827
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.804
  additional property: Liveness
    type: PropertyValue
    value: 0.18
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.3
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.541
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Los 33 Orientales
type: MusicRecording
duration: PT2M46S
duration ms: 166040
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500233
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T21:12:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c2be77489281c70fab6f700e1688e41bf4abcea77a3e90156f3e3f410bb46a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500233
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2be77489281c70fab6f700e1688e41bf4abcea77a3e90156f3e3f410bb46a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500233.
  date published: 2026-07-02T05:09:12Z
audio: Los 33 Orientales
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.06
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.675
  additional property: Energy
    type: PropertyValue
    value: 0.264
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.805
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.733
  additional property: Liveness
    type: PropertyValue
    value: 0.318
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.633
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.729
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Loca
type: MusicRecording
duration: PT2M34S
duration ms: 154026
explicit: false
by artist: Juan D'Arienzo y su Orquesta Típica
in album: Archivo RCA: La Década del '50 - Carlos Di Sarli - Juan D'Arienzo
  type: MusicAlbum
  date published: 2003-07-15
genre: tango
genre: candombe
isrc code: ARF039500222
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T18:54:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc8f735d56a05cea113a5ed57dd7fac163c4a01d3e1bb309a8a16ac00a8b096f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500222
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f735d56a05cea113a5ed57dd7fac163c4a01d3e1bb309a8a16ac00a8b096f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500222.
  date published: 2026-07-08T03:53:27Z
audio: Loca
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.987
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.686
  additional property: Energy
    type: PropertyValue
    value: 0.358
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.275
  additional property: Liveness
    type: PropertyValue
    value: 0.231
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.592
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.399
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Serie 78 RPM : Carlos Di Sarli Vol.3
type: MusicAlbum
date published: 2005-07-15
track: Anselmo Acuña El Resero
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192066
  explicit: false
  by artist: Carlos Di Sarli
  in album: Serie 78 RPM : Carlos Di Sarli Vol.3
    type: MusicAlbum
    date published: 2005-07-15
  isrc code: ARF030001823
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:50:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd28ae4ca01562394a2d0ac58f13d85eaeae401705f28136e148b022b9ffbb00c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957084
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957084
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001823
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T20:41:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28ae4ca01562394a2d0ac58f13d85eaeae401705f28136e148b022b9ffbb00c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001823.
    date published: 2026-07-07T20:41:57Z
  audio: Anselmo Acuña El Resero
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.35
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.714
    additional property: Energy
      type: PropertyValue
      value: 0.245
    additional property: Speechiness
      type: PropertyValue
      value: 0.115
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.393
    additional property: Liveness
      type: PropertyValue
      value: 0.165
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.457
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.974
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ensueños
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160386
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.3
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034300071
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T11:42:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaeb936bb896839eba20e2e73c8d9bd0b5d2c369aa1f9997840c785b67c2b57c4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300071
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb936bb896839eba20e2e73c8d9bd0b5d2c369aa1f9997840c785b67c2b57c4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034300071.
    date published: 2026-07-02T05:09:12Z
  audio: Ensueños
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.46
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.528
    additional property: Energy
      type: PropertyValue
      value: 0.253
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.876
    additional property: Liveness
      type: PropertyValue
      value: 0.18
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.636
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.343
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Hoy Al Recordarla
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186160
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.3
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034500058
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:47:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x10a61718118521add6a6424c3ac26d4124a0ae0fd743fa873abe3a02ac87f187
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Hoy Al Recordarla
track: Yo
track: Para Que Te Quiero Tanto
track: Mañana No Estaras
track: La Vida Me Engaño

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034500058

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a61718118521add6a6424c3ac26d4124a0ae0fd743fa873abe3a02ac87f187. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034500058.
date published: 2026-07-08T08:56:20Z

Hoy Al Recordarla
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 87.858
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.378
additional property: Energy
  type: PropertyValue
  value: 0.299
additional property: Speechiness
  type: PropertyValue
  value: 0.121
additional property: Acousticness
  type: PropertyValue
  value: 0.992
additional property: Instrumentalness
  type: PropertyValue
  value: 0.122
additional property: Liveness
  type: PropertyValue
  value: 0.146
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.498
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.003
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Yo
type: MusicRecording
duration: PT2M35S
duration ms: 155213
explicit: false
by artist: Carlos Di Sarli
in album: Serie 78 RPM : Carlos Di Sarli Vol.3
  type: MusicAlbum
  date published: 2005-07-15
isrc code: ARF030001829
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:29:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe79a0cccd2935493366dd42efbbdc8a07574d814657843397e8c93e81e69b574
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001829
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79a0cccd2935493366dd42efbbdc8a07574d814657843397e8c93e81e69b574. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001829.
  date published: 2026-07-07T18:39:05Z
audio: Yo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.034
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.26
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.039
  additional property: Liveness
    type: PropertyValue
    value: 0.594
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.525
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.719
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Para Que Te Quiero Tanto
type: MusicRecording
duration: PT2M51S
duration ms: 171720
explicit: false
by artist: Carlos Di Sarli
in album: Serie 78 RPM : Carlos Di Sarli Vol.3
  type: MusicAlbum
  date published: 2005-07-15
isrc code: ARF030001832
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:16:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6d26d2a930d802a13b1ffb14697e8f72c42f1e4969c638d3229e74973699722
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001832
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d26d2a930d802a13b1ffb14697e8f72c42f1e4969c638d3229e74973699722. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001832.
  date published: 2026-07-08T03:22:41Z
audio: Para Que Te Quiero Tanto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.756
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.173
  additional property: Liveness
    type: PropertyValue
    value: 0.163
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.528
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.708
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mañana No Estaras
type: MusicRecording
duration: PT2M18S
duration ms: 138400
explicit: false
by artist: Carlos Di Sarli
in album: Serie 78 RPM : Carlos Di Sarli Vol.3
  type: MusicAlbum
  date published: 2005-07-15
isrc code: ARF030001833
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:19:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa6ddabe2e3e0c83240591ed939b2fe67211e05f3fa6b6faf23b803d55be6cf4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001833
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6ddabe2e3e0c83240591ed939b2fe67211e05f3fa6b6faf23b803d55be6cf4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001833.
  date published: 2026-07-08T08:56:20Z
audio: Mañana No Estaras
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.496
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.526
  additional property: Energy
    type: PropertyValue
    value: 0.252
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.019
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.387
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.748
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Vida Me Engaño
type: MusicRecording
duration: PT3M4S
duration ms: 184426
explicit: false
by artist: Carlos Di Sarli
in album: Serie 78 RPM : Carlos Di Sarli Vol.3
  type: MusicAlbum
  date published: 2005-07-15
isrc code: ARF030001836
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:39:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1baad15764ec45dc006e8e85c7ce472608d4ff7d47833036f86753b1c2d28b8a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001836
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baad15764ec45dc006e8e85c7ce472608d4ff7d47833036f86753b1c2d28b8a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF030001836.
  date published: 2026-07-08T03:53:27Z
audio: La Vida Me Engaño
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.8
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.636
  additional property: Energy
    type: PropertyValue
    value: 0.258
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.067
  additional property: Liveness
    type: PropertyValue
    value: 0.529
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.629
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.902
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Archivo RCA : Carlos Di Sarli Vol. 1
type: MusicAlbum
date published: 2005-07-15
track: Un Desolado Corazon
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190013
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400132
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:21:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdfec71eae88bdf62038e45acce7b6cef3a80ad9bccf1ef5eca9741f416141678
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400132
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfec71eae88bdf62038e45acce7b6cef3a80ad9bccf1ef5eca9741f416141678. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400132.
    date published: 2026-07-08T08:56:20Z
  audio: Un Desolado Corazon
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.703
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.508
    additional property: Energy
      type: PropertyValue
      value: 0.265
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.859
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.333
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.276
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.595
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Sin Ti
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156053
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400134
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:03:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x97bc3d61ce29d8b4966353876f1d0f90905e3621ab332095d199eb9c66d25b01
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400134
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc3d61ce29d8b4966353876f1d0f90905e3621ab332095d199eb9c66d25b01. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400134.
    date published: 2026-07-08T03:53:27Z
  audio: Sin Ti
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.181
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.402
    additional property: Energy
      type: PropertyValue
      value: 0.373
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.943
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.212
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.455
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.018
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: El Once - 2ª Versión
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165773
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Archivo RCA : Carlos Di Sarli Vol. 1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035400060
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T08:48:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: El Once - 2ª Versión
track: Don Juan - 2ª Versión
track: Germaine - 2ª Versión
track: Noche De Locura - 2a Version
track: El Jagüel - 2ª Versión
track: Nueve Puntos - 2ª Versión
track: Viviani - 2ª Versión

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0c40fc730b0ca57c2a05a1b84180000743f48c198572eacd34e019d5b3594. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035400060.
date published: 2026-07-08T08:56:20Z

El Once - 2ª Versión
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 129.206
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.667
additional property: Energy
  type: PropertyValue
  value: 0.35
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.804
additional property: Instrumentalness
  type: PropertyValue
  value: 0.884
additional property: Liveness
  type: PropertyValue
  value: 0.058
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.514
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.086
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Don Juan - 2ª Versión
type: MusicRecording
duration: PT2M46S
duration ms: 166293
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T22:48:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d74d6540b8e3d1cc1e9ce1d1008b1f0ac5c9ba77b320152246a67754687809f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500014.
  date published: 2026-07-08T03:53:27Z
audio: Don Juan - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.478
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.737
  additional property: Energy
    type: PropertyValue
    value: 0.261
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.609
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.858
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.447
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.43
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Germaine - 2ª Versión
type: MusicRecording
duration: PT3M12S
duration ms: 192800
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035500052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T19:06:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a497dd2e6cefa691640982e01ff901e397e1eed722e32253b65f670795ef61. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500052.
  date published: 2026-07-08T03:22:41Z
audio: Germaine - 2ª Versión
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.607
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.57
  additional property: Energy
    type: PropertyValue
    value: 0.242
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.788
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.907
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.34
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.459
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Noche De Locura - 2a Version
type: MusicRecording
duration: PT3M3S
duration ms: 183120
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:47:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26b11c704916ada9c957dfe33041fb05b61b31d4da9eba73bcc47ad7fa13e388
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b11c704916ada9c957dfe33041fb05b61b31d4da9eba73bcc47ad7fa13e388. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035600114.
  date published: 2026-07-08T08:56:20Z
audio: Noche De Locura - 2a Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.12
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.401
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.906
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.539
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.195
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.756
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Jagüel - 2ª Versión
type: MusicRecording
duration: PT2M50S
duration ms: 170493
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Archivo RCA : Carlos Di Sarli Vol. 1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF035600065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:44:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61a78b6a236b1ce71bcdb09139e78e64f5b80bd2d09c9e131ba30d291e0841ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: El Jagüel - 2ª Versión
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Nueve Puntos - 2ª Versión
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in album: Archivo RCA : Carlos Di Sarli Vol. 1
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genre: tango
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: Nueve Puntos - 2ª Versión
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Viviani - 2ª Versión
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Viviani - 2ª Versión
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Re Fa Si (El Barrio De Tango Vol. 14 - Original Tango Argentino 1952 - 1953)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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track: Leyenda Gaucha
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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The Tango Lesson - OST
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track: I Am You - Voice
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  by artist: Yo-Yo Ma
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
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Organito De La Tarde (El Barrio De Tango Vol. 9 - Original Tango Argentino 1942- 1943)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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The Tango Lesson Soundtrack
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  genre: bolero
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x6cc19a2d2b76217767d6b464ffaab77d3636be5727ae338fe687479ce92990fe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953536
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF049500016
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc19a2d2b76217767d6b464ffaab77d3636be5727ae338fe687479ce92990fe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF049500016.
    date published: 2026-06-13T17:25:41Z
  audio: Mi Buenos Aires Querido - Voice
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.735
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.448
    additional property: Energy
      type: PropertyValue
      value: 0.188
    additional property: Speechiness
      type: PropertyValue
      value: 0.115
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.363
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.847
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: El Flete - Instrumental
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175333
  explicit: false
  by artist: Juan D'Arienzo y su Orquesta Típica
  by artist: Juan D'Arienzo
  by artist: VINCENTE GRECO
  by artist: Gerónimo Gradito
  in album: The Tango Lesson Soundtrack
    type: MusicAlbum
    date published: 1997-09-15
  genre: tango
  genre: candombe
  isrc code: GRHR11007907
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T21:03:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb0f3eb4d4d115acb2ec2145456345a477c4242d8173a4494b96e31830849c834
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRHR11007907
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f3eb4d4d115acb2ec2145456345a477c4242d8173a4494b96e31830849c834. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRHR11007907.
    date published: 2026-06-13T15:41:10Z
  audio: El Flete - Instrumental
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.179
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.883
    additional property: Energy
      type: PropertyValue
      value: 0.341
    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.76
    additional property: Liveness
      type: PropertyValue
      value: 0.055
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.795
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.993
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Pensalo Bien - Voice
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136760
  explicit: false
  by artist: Alberto Echagüe
  by artist: Juan D'Arienzo y su Orquesta Típica
  by artist: Juan D'Arienzo
  by artist: NOLA LÓPEZ
  by artist: JULIO ALBERTO
  by artist: José Juan Visiglio
  in album: The Tango Lesson Soundtrack
    type: MusicAlbum
    date published: 1997-09-15
  isrc code: DEXO42238437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T21:53:17+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Pensalo Bien - Voice
track: Bahía Blanca - Instrumental
track: I Am You - Voice

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x72bf41a91f515cac075d9cd01d36cb9634048efda04e86f428a7319a2419852e

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953520

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953520

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42238437

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bf41a91f515cac075d9cd01d36cb9634048efda04e86f428a7319a2419852e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42238437.
date published: 2026-06-13T13:32:09Z

Pensalo Bien - Voice
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 142.997
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.798
additional property: Energy
  type: PropertyValue
  value: 0.403
additional property: Speechiness
  type: PropertyValue
  value: 0.068
additional property: Acousticness
  type: PropertyValue
  value: 0.98
additional property: Instrumentalness
  type: PropertyValue
  value: 0.004
additional property: Liveness
  type: PropertyValue
  value: 0.078
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.808
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.701
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Minor

Bahía Blanca - Instrumental
type: MusicRecording
duration: PT2M52S
duration ms: 172333
explicit: false
by artist: Carlos Di Sarli
by artist: Carlos Di Sarli y su Orquesta Típica
in album: The Tango Lesson Soundtrack
  type: MusicAlbum
  date published: 1997-09-15
isrc code: ARF039300109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T22:51:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
  date published: 2026-07-02T03:55:08Z
audio: Bahía Blanca - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.403
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.465
  additional property: Energy
    type: PropertyValue
    value: 0.173
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.917
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.586
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

I Am You - Voice
type: MusicRecording
duration: PT3M4S
duration ms: 184560
explicit: false
by artist: Sebastián Piana
by artist: Sally Potter
by artist: Yo-Yo Ma
by artist: Horacio Malvicino
by artist: Leonardo D. Marconi
by artist: Antonio Agri
by artist: Nestor E. Marconi
in album: The Tango Lesson Soundtrack
  type: MusicAlbum
  date published: 1997-09-15
isrc code: USSM19701015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T09:09:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbe4dd1386079b16b1eb8c8d68e3afed6eb0aa368a6f8680f7b37ad764e87208
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe4dd1386079b16b1eb8c8d68e3afed6eb0aa368a6f8680f7b37ad764e87208. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701015.
  date published: 2026-07-08T03:53:27Z
audio: I Am You - Voice
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.304
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.372
  additional property: Energy
    type: PropertyValue
    value: 0.061
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.866
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.266
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.72
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

100 Años En 100 Tangos
type: MusicAlbum
date published: 1999-11-17
track: La Madrugada
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149226
  explicit: false
  by artist: Juan D'Arienzo y su Orquesta Típica
  in album: 100 Años En 100 Tangos
    type: MusicAlbum
    date published: 1999-11-17
  popularity: 4
  genre: tango
  genre: candombe
  isrc code: ARF039821118
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:23:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22e1a51b07f244f27efe0f29861d9d00ddb95750b5c82e529d926bb5c0cbbc5d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039821118
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e1a51b07f244f27efe0f29861d9d00ddb95750b5c82e529d926bb5c0cbbc5d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039821118.
    date published: 2026-07-08T03:20:19Z
  audio: La Madrugada
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.16
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.557
    additional property: Energy
      type: PropertyValue
      value: 0.324
    additional property: Speechiness
      type: PropertyValue
      value: 0.091
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.312
    additional property: Liveness
      type: PropertyValue
      value: 0.127
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.702
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.018
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nostalgias
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182040
  explicit: false
  by artist: Francisco Lomuto y su Orquesta Típica
  in album: 100 Años En 100 Tangos
    type: MusicAlbum
    date published: 1999-11-17
  popularity: 1
  isrc code: ARF039500189
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:46:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcb094d09507bee6c79b226d53ad47b97256f42474410ba94f20a72987e58e48c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500189
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb094d09507bee6c79b226d53ad47b97256f42474410ba94f20a72987e58e48c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500189.
    date published: 2026-07-08T03:22:41Z
  audio: Nostalgias
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.779
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.662
    additional property: Energy
      type: PropertyValue
      value: 0.236
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.708
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.393
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Serie 78 RPM : Carlos Di Sarli Vol.2
type: MusicAlbum
date published: 2004-07-15
track: Catamarca
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141333
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.2
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034000036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:42:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x769a8769bf70fddec36ccfbb97625700d1bb99386a7bae01cf894fe7e30798a5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034000036
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769a8769bf70fddec36ccfbb97625700d1bb99386a7bae01cf894fe7e30798a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034000036.
    date published: 2026-07-08T03:22:41Z
  audio: Catamarca
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.623
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.681
    additional property: Energy
      type: PropertyValue
      value: 0.454
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.932
    additional property: Liveness
      type: PropertyValue
      value: 0.122
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.85
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.813
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: La Trilla
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138986
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.2
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034000038
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:10:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb3d85e2b11575937c89165c3cc140bdb053c97827b0a79a2385592c8d0058953
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034000038
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d85e2b11575937c89165c3cc140bdb053c97827b0a79a2385592c8d0058953. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034000038.
    date published: 2026-07-08T03:39:04Z
  audio: La Trilla
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.882
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.486
    additional property: Energy
      type: PropertyValue
      value: 0.382
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.955
    additional property: Liveness
      type: PropertyValue
      value: 0.347
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.775
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.408
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Germaine - 1a Version
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175933
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.2
    type: MusicAlbum
    date published: 2004-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF034100045
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:03:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbc9ea0b863ad0c3e714fd3057bec7e71507d1497b5259637103ad291bf741897
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Germaine - 1a Version

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034100045

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9ea0b863ad0c3e714fd3057bec7e71507d1497b5259637103ad291bf741897. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034100045.
date published: 2026-07-08T08:56:20Z

Germaine - 1a Version
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 135.626
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.761
additional property: Energy
  type: PropertyValue
  value: 0.342
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.988
additional property: Instrumentalness
  type: PropertyValue
  value: 0.828
additional property: Liveness
  type: PropertyValue
  value: 0.106
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.638
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.127
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Serie 78 RPM : Carlos Di Sarli Vol.1
type: MusicAlbum
date published: 2005-07-15
track: Belen
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162133
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039500561
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T23:02:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc8ecb0b7705365c71b02f86407b64b838b3f4603d56fbc9779b653a744f57bf9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500561
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ecb0b7705365c71b02f86407b64b838b3f4603d56fbc9779b653a744f57bf9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500561.
    date published: 2026-07-08T03:39:04Z
  audio: Belen
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.057
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.692
    additional property: Energy
      type: PropertyValue
      value: 0.202
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.946
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.439
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.686
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.942
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Cicatrices
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147733
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039500535
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:17:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x32df5fc77b151f51a0d50d2a8ac03e8e1bf020f86f7a8aaf558812f86f35a17c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500535
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32df5fc77b151f51a0d50d2a8ac03e8e1bf020f86f7a8aaf558812f86f35a17c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500535.
    date published: 2026-07-08T03:53:27Z
  audio: Cicatrices
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.394
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.518
    additional property: Energy
      type: PropertyValue
      value: 0.337
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.926
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.289
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.54
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.273
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Chau Pinela
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154120
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Serie 78 RPM : Carlos Di Sarli Vol.1
    type: MusicAlbum
    date published: 2005-07-15
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039500211
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T08:17:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe2d98f783ea8f721706d39237a584b1a41375c48da065a092e8c03ae5a06002a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Chau Pinela
track: La Estancia
track: Flora
track: Añorandote

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957073

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957073

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500211

OTSTimestamp
type: PropertyValue
value: 2026-07-07T18:39:05Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d98f783ea8f721706d39237a584b1a41375c48da065a092e8c03ae5a06002a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500211.
date published: 2026-07-07T18:39:05Z

Chau Pinela
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.241
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.731
additional property: Energy
  type: PropertyValue
  value: 0.367
additional property: Speechiness
  type: PropertyValue
  value: 0.062
additional property: Acousticness
  type: PropertyValue
  value: 0.967
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.111
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.79
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.619
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

La Estancia
type: MusicRecording
duration: PT3M22S
duration ms: 202466
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500227
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:30:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e01a0928b036b1ce8c08ee2e55bfc4300e3f7c7a16324b98cd6e1f99faa28ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500227
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01a0928b036b1ce8c08ee2e55bfc4300e3f7c7a16324b98cd6e1f99faa28ac. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500227.
  date published: 2026-07-08T03:39:04Z
audio: La Estancia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.483
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.67
  additional property: Energy
    type: PropertyValue
    value: 0.27
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.283
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.674
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.341
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Flora
type: MusicRecording
duration: PT2M36S
duration ms: 156453
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500229
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500229
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7106006e1e3a99f2c5af0477f412d648371c3f25d3205d916d4e9a454400d0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500229.
  date published: 2026-07-07T18:39:05Z
audio: Flora
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Añorandote
type: MusicRecording
duration: PT2M34S
duration ms: 154973
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Serie 78 RPM : Carlos Di Sarli Vol.1
  type: MusicAlbum
  date published: 2005-07-15
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039500228
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500228
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4902fad97298ca71c31879031a6cc3ff483620939f62a0840b002894ea4c6d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500228.
  date published: 2026-07-08T08:56:20Z
audio: Añorandote
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.219
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.754
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.566
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Inolvidables RCA - 20 Grandes Exitos
type: MusicAlbum
date published: 2003-09-30
track: Bahía Blanca - Instrumental
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171480
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Inolvidables RCA - 20 Grandes Exitos
    type: MusicAlbum
    date published: 2003-09-30
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
    date published: 2026-07-08T03:53:27Z
  audio: Bahía Blanca - Instrumental
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.469
    additional property: Energy
      type: PropertyValue
      value: 0.305
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.138
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: La Cumparsita - 2ª Versión
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196546
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Inolvidables RCA - 20 Grandes Exitos
    type: MusicAlbum
    date published: 2003-09-30
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF039500234
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e97bc0f18ce2e4948188dff86730dbe423416386800d42c2027417d1f9a09. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500234.
    date published: 2026-07-08T03:22:41Z
  audio: La Cumparsita - 2ª Versión
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.891
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.368
    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Nueve Puntos - 2ª Versión
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  duration: PT3M25S
  duration ms: 205120
  explicit: false
  by artist: Carlos Di Sarli y su Orquesta Típica
  in album: Inolvidables RCA - 20 Grandes Exitos
    type: MusicAlbum
    date published: 2003-09-30
  genre: tango
  genre: orquesta-tipica
  genre: vintage-tango
  isrc code: ARF035500002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T22:49:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xde7ae36bec6560bff23912b7b0dbfc82372b4c665201437b584faa141dd06fbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Nueve Puntos - 2ª Versión
track: La Racha

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500002

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7ae36bec6560bff23912b7b0dbfc82372b4c665201437b584faa141dd06fbb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500002.
date published: 2026-07-08T03:22:41Z

Nueve Puntos - 2ª Versión
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 126.912
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.526
additional property: Energy
  type: PropertyValue
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additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
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additional property: Instrumentalness
  type: PropertyValue
  value: 0.146
additional property: Liveness
  type: PropertyValue
  value: 0.331
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.43
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.654
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

La Racha
type: MusicRecording
duration: PT2M35S
duration ms: 155533
explicit: false
by artist: Carlos Di Sarli y su Orquesta Típica
in album: Inolvidables RCA - 20 Grandes Exitos
  type: MusicAlbum
  date published: 2003-09-30
genre: tango
genre: orquesta-tipica
genre: vintage-tango
isrc code: ARF039300101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T03:32:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a56914150458d9419d9b4dc2230e46007909c7291388851142469e2eca65d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300101.
  date published: 2026-07-08T03:53:27Z
audio: La Racha
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.717
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Buenos Aires Tango Instrumental
type: MusicAlbum
date published: 2004-01-13
track: Palomita Blanca
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152946
  explicit: false
  by artist: Juan De Dios Filiberto y su Gran Orquesta
  in album: Buenos Aires Tango Instrumental
    type: MusicAlbum
    date published: 2004-01-13
  isrc code: ARF035900050
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-07T06:29:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x42282bdf572463cd304e432efd4d04a6d341a8f9413b265ec2c31b6db5a18812
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035900050
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42282bdf572463cd304e432efd4d04a6d341a8f9413b265ec2c31b6db5a18812. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035900050.
    date published: 2026-07-08T08:56:20Z
  audio: Palomita Blanca
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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El Choclo (El Barrio De Tango Vol. 7 - Original Tango Argentino 1940- 1941)
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date published: 2013-01-01
track: Parque Patricios
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  duration: PT2M21S
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    date published: 2026-07-02T11:34:59Z
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El Amanecer (El Barrio De Tango Vol. 11 - Original Tango Argentino 1945- 1947)
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date published: 2013-01-01
track: El Once
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: El Once
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Assassination Tango
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track: Bahía Blanca - Instrumental
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T16:07:00Z
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Colección Buenos Aires Tango
type: MusicAlbum
date published: 2003-11-27

Una Antología del Tango - "Los Binomios"
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Todo Tango
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Felicia (El Barrio De Tango Vol. 6 - Original Tango Argentino 1939 - 1940)
type: MusicAlbum
date published: 2013-01-01

100 Tango, Vol. 2 (100 Original Recordings)
type: MusicAlbum
date published: 2014-08-01

Solo Tango Para Bailar Vol. 1
type: MusicAlbum
date published: 2000-06-01

Locos X El Tango
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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Quejas De Bandoneón (El Barrio De Tango Vol. 10 - Original Tango Argentino 1943- 1944)
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Archivo RCA: La Década del '50 - Orquestas y Conjuntos
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Ofrenda Gaucha: Embrujo
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    date published: 2026-07-08T03:20:19Z
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Una Hora en Buenos Aires, Vol. 1
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