Machito & His Afro-Cuban Orchestra
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genre: bebop
genre: latin jazz
genre: mambo
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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 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
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album: Unheard Bird: The Unissued Takes
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  date published: 2016-01-01
  track: An Oscar For Treadwell - Incomplete 411-1
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    by artist: Dizzy Gillespie
    by artist: Charlie Parker
    by artist: Thelonious Monk
    by artist: Curly Russell
    by artist: Buddy Rich
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      date published: 2016-01-01
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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 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
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      date published: 2026-06-13T12:47:07Z
    audio: An Oscar For Treadwell - Incomplete 411-1
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  track: Okiedoke - Incomplete 1
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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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  track: Tune Z - Alternate Take 9
  track: Star Eyes - Incomplete & False Start
  track: Star Eyes - Incomplete
  track: Blues (Fast) - False Starts 372-1/2/3
album: "Live" Treasures "Palladium Days" Vol.3
album: "Live" Treasures "Palladium Days" Vol.2
album: Vacation At the Concord
album: "Live" Treasures Palladium Days
album: Cha-Cha-Cha Loco! With Machito & His Afro-Cuban Orchestra
album: Tremendo Cumban
album: Mucho Macho
album: The Early Years
album: Mambo Mucho Mambo: The Complete Columbia Masters
album: Mambo Holiday
album: Don't Tease Me
album: Guaglione
album: Cocktails for Two
album: Zambia
album: Tremendo Cambán
album: Patrícia
album: Negro Ñañamboro
album: Mambo Inn
album: Holiday Mambo
album: Freezelandia
album: Contigo en la Distancia
album: Bongo Fiesta
album: Beerebee Cum Bee
album: Adiós
album: Top 80 Classics - The Very Best of Machito & His Afro-Cubans
album: Bird: The Complete Charlie Parker On Verve
album: Música del Sol
album: Locos por el Mambo
album: South Of The Border
album: The Jazz Scene
album: The Real Cuban Music: Mambo (Remasterizado)
album: Talkin' Bird
album: Mambo Jambo … The Sizzling Sounds of South America
album: Jazz Series - Best of Latin Jazz, Vol. 4
album: Manteca! The Roots Of Afro-Cuban Jazz
album: Cuba Libre: El Corneta (¡El Más Selecto Cóctel Musical!)
album: La Mejor Musica Latina des Carmen Miranda,Edmundo Ros,Don Marino Barreto y Otros Artistas, Vol. 1 (112 Éxitos)
album: Cuba Libre: Siboney (¡El Más Selecto Cóctel Musical!)
album: Saga Jazz: Latin Jazz (Afro-Cuban Jazz Pioneers)

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Tune Z - Alternate Take 9
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Tune Z - Alternate Take 9
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Star Eyes - Incomplete & False Start
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Star Eyes - Incomplete & False Start
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Star Eyes - Incomplete
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
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Blues (Fast) - False Starts 372-1/2/3
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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 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 0xdf0152bd78207633c7ffa0ac8063424507462f80d746ceb4d239ebcfaffc39ab. 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/USUM71604832.
  date published: 2026-07-02T03:30:09Z
audio: Blues (Fast) - False Starts 372-1/2/3
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  additional property: Valence (Positivity)
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  additional property: Key Name
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  additional property: Mode Name
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"Live" Treasures "Palladium Days" Vol.3
type: MusicAlbum
date published: 2021-12-08

"Live" Treasures "Palladium Days" Vol.2
type: MusicAlbum
date published: 2021-05-03

Vacation At the Concord
type: MusicAlbum
date published: 2021-01-01

"Live" Treasures Palladium Days
type: MusicAlbum
date published: 2020-12-06

Cha-Cha-Cha Loco! With Machito & His Afro-Cuban Orchestra
type: MusicAlbum
date published: 2020-09-16

Tremendo Cumban
type: MusicAlbum
date published: 2014-10-08

Mucho Macho
type: MusicAlbum
date published: 2011-04-30

The Early Years
type: MusicAlbum
date published: 2008-09-09
track: Mambo Inn
  type: MusicRecording
  duration: PT13M47S
  duration ms: 827611
  explicit: false
  by artist: Machito & His Afro-Cuban Orchestra
  in album: The Early Years
    type: MusicAlbum
    date published: 2008-09-09
  genre: mambo
  isrc code: USJ3V0857032
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  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T18:41:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x36b0638559c4d86749992617d0567a89d99a910be2ef26c0248cba1bc7f2805a
  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/USJ3V0857032
  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 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 0x36b0638559c4d86749992617d0567a89d99a910be2ef26c0248cba1bc7f2805a. 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/USJ3V0857032.
    date published: 2026-06-13T13:32:09Z
  audio: Mambo Inn
    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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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.492
    additional property: Energy
      type: PropertyValue
      value: 0.744
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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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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track: El Jamaiquino
  type: MusicRecording
  duration: PT6M53S
  duration ms: 413309
  explicit: false
  by artist: Machito & His Afro-Cuban Orchestra
  in album: The Early Years
    type: MusicAlbum
    date published: 2008-09-09
  genre: mambo
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  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlock
    type: PropertyValue
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  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/USJ3V0857033
  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 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 0x6f95fe706840c6050588cd031eb73bb270bc61d22fc355e399d3d7a102570e59. 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/USJ3V0857033.
    date published: 2026-06-13T13:32:09Z
  audio: El Jamaiquino
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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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
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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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track: Babarabatiri
  type: MusicRecording
  duration: PT13M51S
  duration ms: 831529
  explicit: false
  by artist: Machito & His Afro-Cuban Orchestra
  in album: The Early Years
    type: MusicAlbum
    date published: 2008-09-09
  genre: mambo
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  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
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Babarabatiri

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0857034

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 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 0xf79622041052104bf895e5899635a7f90e8b0ab3daca8d5690657938e57fdb95. 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/USJ3V0857034.
date published: 2026-06-13T13:32:09Z

Babarabatiri
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.504
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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Mambo Mucho Mambo: The Complete Columbia Masters
type: MusicAlbum
date published: 2001-01-01

Mambo Holiday
type: MusicAlbum
date published: 2000-01-01

Don't Tease Me
type: MusicAlbum
date published: 1999-03-01

Guaglione
type: MusicAlbum
date published: 2015-04-20

Cocktails for Two
type: MusicAlbum
date published: 2015-04-20

Zambia
type: MusicAlbum
date published: 2015-02-11

Tremendo Cambán
type: MusicAlbum
date published: 2015-02-11

Patrícia
type: MusicAlbum
date published: 2015-02-11

Negro Ñañamboro
type: MusicAlbum
date published: 2015-02-11

Mambo Inn
type: MusicAlbum
date published: 2015-02-11

Holiday Mambo
type: MusicAlbum
date published: 2015-02-11

Freezelandia
type: MusicAlbum
date published: 2015-02-11

Contigo en la Distancia
type: MusicAlbum
date published: 2015-02-11

Bongo Fiesta
type: MusicAlbum
date published: 2015-02-11

Beerebee Cum Bee
type: MusicAlbum
date published: 2015-02-11

Adiós
type: MusicAlbum
date published: 2015-02-11

Top 80 Classics - The Very Best of Machito & His Afro-Cubans
type: MusicAlbum
date published: 2014-09-12

Bird: The Complete Charlie Parker On Verve
type: MusicAlbum
date published: 1990-10-25
track: Sweet Georgia Brown - Live At Philharmonic Auditorium, Los Angeles/1946
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  duration: PT9M32S
  duration ms: 572066
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  by artist: Dizzy Gillespie
  by artist: Charlie Parker
  in album: Bird: The Complete Charlie Parker On Verve
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    date published: 1990-10-25
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x0b3dec6399925230feb6ae5357e9fff3b70896184475ef3916e34f4b20a7943c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    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/USPR34611028
  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 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 0x0b3dec6399925230feb6ae5357e9fff3b70896184475ef3916e34f4b20a7943c. 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/USPR34611028.
    date published: 2026-07-02T03:55:08Z
  audio: Sweet Georgia Brown - Live At Philharmonic Auditorium, Los Angeles/1946
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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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
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    additional property: Instrumentalness
      type: PropertyValue
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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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track: I Got Rhythm - Live At Embassy Auditorium, Los Angeles / 1946
  type: MusicRecording
  duration: PT12M53S
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  explicit: false
  by artist: Charlie Parker
  by artist: Lester Young
  in album: Bird: The Complete Charlie Parker On Verve
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  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
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPR34611032
  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 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 0x729a594212de8bd773b522b1e2bd317e3147f73703acecbd21dac163544102db. 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/USPR34611032.
    date published: 2026-07-02T05:09:12Z
  audio: I Got Rhythm - Live At Embassy Auditorium, Los Angeles / 1946
    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
      type: PropertyValue
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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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Música del Sol
type: MusicAlbum
date published: 2012-11-27
track: Sigue la Gente
  type: MusicRecording
  duration: PT2M38S
  duration ms: 158026
  explicit: false
  by artist: Rene Grand Y Su Combo New York
  in album: Música del Sol
    type: MusicAlbum
    date published: 2012-11-27
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  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
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81521246
  additional property: OTSTimestamp
    type: PropertyValue
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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 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 0x293d3128063adcec6d615951ded3f7e47f72c8fc243ee9115a567db125e86b84. 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/FR6V81521246.
    date published: 2026-07-02T03:30:09Z
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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