Lu Ferreyra
type: MusicGroup
genre: latin indie
popularity: 17
followers: 3281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8404161d49b3959cf3df155ef3458d3ac551c875b4451fa90d2c7ecee4ba4d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41221a85-9a5e-4ec8-9418-1ee83795d7bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41221a85-9a5e-4ec8-9418-1ee83795d7bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41221a85-9a5e-4ec8-9418-1ee83795d7bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8404161d49b3959cf3df155ef3458d3ac551c875b4451fa90d2c7ecee4ba4d8","name":"Lu Ferreyra","registered_at":"2026-06-14T11:19:08Z","symbol":"NIM0436482","token_address":"0xecbb830140274db46faa350fbaa147b378ef9dcc","type":"artist","uuid":"41221a85-9a5e-4ec8-9418-1ee83795d7bd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8404161d49b3959cf3df155ef3458d3ac551c875b4451fa90d2c7ecee4ba4d8. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41221a85-9a5e-4ec8-9418-1ee83795d7bd.json and https://artists.proofprofile.net/proofs/artist/41221a85-9a5e-4ec8-9418-1ee83795d7bd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xa8404161d49b3959cf3df155ef3458d3ac551c875b4451fa90d2c7ecee4ba4d8","name":"Lu Ferreyra","registered_at":"2026-06-14T11:19:08Z","symbol":"NIM0436482","token_address":"0xecbb830140274db46faa350fbaa147b378ef9dcc","type":"artist","uuid":"41221a85-9a5e-4ec8-9418-1ee83795d7bd"}
album: Cuento
  type: MusicAlbum
  date published: 2019-12-17
album: Don
  type: MusicAlbum
  date published: 2020-12-16
album: Secuelas
  type: MusicAlbum
  date published: 2022-05-05
  track: Sigo Acá
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217759
    explicit: false
    by artist: Lu Ferreyra
    in album: Secuelas
      type: MusicAlbum
      date published: 2022-05-05
    genre: latin indie
    isrc code: QZHZ52224242
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:59:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf7cfb7aa5a5f7e50e617110fa890942d37fbaf329a7cbe576f45ed9ecdc4424b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52224242
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cfb7aa5a5f7e50e617110fa890942d37fbaf329a7cbe576f45ed9ecdc4424b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52224242 — a six-check JSON result.
      date published: 2026-07-05T18:48:28Z
    audio: Sigo Acá
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.947
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.607
      additional property: Energy
        type: PropertyValue
        value: 0.472
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.319
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.302
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.691
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.104
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Arruinalo
  type: MusicAlbum
  date published: 2023-03-10
  track: Arruinalo
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195500
    explicit: false
    by artist: Lu Ferreyra
    in album: Arruinalo
      type: MusicAlbum
      date published: 2023-03-10
    genre: latin indie
    isrc code: QZ5AB2391706
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:44:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6348c4ad7807c148fd4c9c32f925dcf63a0224567603e9c14bfaf02a6b13ca2a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2391706
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6348c4ad7807c148fd4c9c32f925dcf63a0224567603e9c14bfaf02a6b13ca2a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2391706 — a six-check JSON result.
      date published: 2026-07-05T10:01:46Z
    audio: Arruinalo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.028
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.762
      additional property: Energy
        type: PropertyValue
        value: 0.215
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.305
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Reminiscencia
album: Llamar de Nuevo
album: Las Luces de la Calle
album: Amor Egoísta
album: La Noche y el Día
album: Dualidad
album: Pensás en Ella
album: Sesión en Vivo

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.137

Valence (Positivity)
type: PropertyValue
value: 0.524

Loudness (dB)
type: PropertyValue
value: -18.14

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

Reminiscencia
type: MusicAlbum
date published: 2023-09-29

Llamar de Nuevo
type: MusicAlbum
date published: 2024-02-14

Las Luces de la Calle
type: MusicAlbum
date published: 2024-03-01
track: Las Luces de la Calle
  type: MusicRecording
  duration: PT3M29S
  duration ms: 209168
  explicit: false
  by artist: Lu Ferreyra
  in album: Las Luces de la Calle
    type: MusicAlbum
    date published: 2024-03-01
  genre: latin indie
  isrc code: ARNKR2400002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T11:54:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x52a66766a6e6a7a5fd08a83759ec36d15b997401eff1daa9465c1840e089ff7f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958153
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958153
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2400002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T12:03:04Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a66766a6e6a7a5fd08a83759ec36d15b997401eff1daa9465c1840e089ff7f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2400002 — a six-check JSON result.
    date published: 2026-07-15T12:03:04Z
  audio: Las Luces de la Calle
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 82.362
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.351
    additional property: Energy
      type: PropertyValue
      value: 0.177
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.856
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.288
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.189
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Amor Egoísta
type: MusicAlbum
date published: 2024-05-22
track: Amor Egoísta
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198509
  explicit: false
  by artist: Lu Ferreyra
  in album: Amor Egoísta
    type: MusicAlbum
    date published: 2024-05-22
  genre: latin indie
  isrc code: ARNKR2400003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T13:23:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8487bddeca06f6d906efd0f9409366cdd54233cb12ead934c9b784c916a9f4ac
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2400003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8487bddeca06f6d906efd0f9409366cdd54233cb12ead934c9b784c916a9f4ac. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2400003 — a six-check JSON result.
    date published: 2026-07-05T18:48:28Z
  audio: Amor Egoísta
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.874
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.725
    additional property: Energy
      type: PropertyValue
      value: 0.489
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.277
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.57
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.191
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

La Noche y el Día
type: MusicAlbum
date published: 2024-07-04

Dualidad
type: MusicAlbum
date published: 2024-09-05

Pensás en Ella
type: MusicAlbum
date published: 2025-05-29

Pensás en Ella
type: MusicAlbum
date published: 2025-08-21

Sesión en Vivo
type: MusicAlbum
date published: 2025-09-25
track: Ya Me Hiciste Mal
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173089
  explicit: false
  by artist: Lu Ferreyra
  in album: Sesión en Vivo
    type: MusicAlbum
    date published: 2025-09-25
  genre: latin indie
  isrc code: ARNKR2500002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T05:14:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2483f361840398eb5e3482f852ad0747ed4f7aba0c798070c2b7176290166b69
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958830
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958830
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T05:30:12Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483f361840398eb5e3482f852ad0747ed4f7aba0c798070c2b7176290166b69. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500002 — a six-check JSON result.
    date published: 2026-07-20T05:30:12Z
  audio: Ya Me Hiciste Mal
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.975
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.575
    additional property: Energy
      type: PropertyValue
      value: 0.471
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.22
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.167
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.571
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.757
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: No Es un Buen Momento
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199157
  explicit: false
  by artist: Lu Ferreyra
  in album: Sesión en Vivo
    type: MusicAlbum
    date published: 2025-09-25
  genre: latin indie
  isrc code: ARNKR2500003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:02:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb619d35464f47edcf00309098da5607d87762c60694c4ef10ab2d0c79177fc54
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb619d35464f47edcf00309098da5607d87762c60694c4ef10ab2d0c79177fc54. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500003 — a six-check JSON result.
    date published: 2026-07-03T08:56:35Z
  audio: No Es un Buen Momento
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.193
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.372
    additional property: Energy
      type: PropertyValue
      value: 0.458
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.376
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.168
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.342
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.723
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Arruinalo
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182557
  explicit: false
  by artist: Lu Ferreyra
  in album: Sesión en Vivo
    type: MusicAlbum
    date published: 2025-09-25
  genre: latin indie
  isrc code: ARNKR2500004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T10:28:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x29f3cfcc4a17164358c94687063671fb448a5cad7f695ba34ef009d7454ce0eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Arruinalo
track: Sigo Acá

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500004

OTSTimestamp
type: PropertyValue
value: 2026-07-03T19:59:51Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f3cfcc4a17164358c94687063671fb448a5cad7f695ba34ef009d7454ce0eb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500004 — a six-check JSON result.
date published: 2026-07-03T19:59:51Z

Arruinalo
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 99.916
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.777
additional property: Energy
  type: PropertyValue
  value: 0.447
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.365
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.271
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.652
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.614
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor

Sigo Acá
type: MusicRecording
duration: PT3M35S
duration ms: 215757
explicit: false
by artist: Lu Ferreyra
in album: Sesión en Vivo
  type: MusicAlbum
  date published: 2025-09-25
genre: latin indie
isrc code: ARNKR2500005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T05:55:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf346f51d93e3ea7270bde1936c82c26f2236dbcd2ce3ce779b240d2ea785813
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956772
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:01:46Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf346f51d93e3ea7270bde1936c82c26f2236dbcd2ce3ce779b240d2ea785813. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNKR2500005 — a six-check JSON result.
  date published: 2026-07-05T10:01:46Z
audio: Sigo Acá
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.041
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.545
  additional property: Energy
    type: PropertyValue
    value: 0.541
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.294
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.386
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.827
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.734
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major