Copa 7
type: MusicGroup
genre: pagode baiano
genre: samba
popularity: 22
followers: 1747
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7d4d94f5cdf58e0c8cdcdb486bd6e799d3590935124b1f6a3ce621b4714b7b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a088306d-4b1f-45a2-addd-7249e917786d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a088306d-4b1f-45a2-addd-7249e917786d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a088306d-4b1f-45a2-addd-7249e917786d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb7d4d94f5cdf58e0c8cdcdb486bd6e799d3590935124b1f6a3ce621b4714b7b7","name":"Copa 7","registered_at":"2026-06-12T05:53:09Z","symbol":"NIM0206377","token_address":"0x9ec38b0a3bafd9c10e6cbfc8b19f8bdb2aea84bc","type":"artist","uuid":"a088306d-4b1f-45a2-addd-7249e917786d"}
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 0xb7d4d94f5cdf58e0c8cdcdb486bd6e799d3590935124b1f6a3ce621b4714b7b7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a088306d-4b1f-45a2-addd-7249e917786d.json and https://artists.proofprofile.net/proofs/artist/a088306d-4b1f-45a2-addd-7249e917786d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb7d4d94f5cdf58e0c8cdcdb486bd6e799d3590935124b1f6a3ce621b4714b7b7","name":"Copa 7","registered_at":"2026-06-12T05:53:09Z","symbol":"NIM0206377","token_address":"0x9ec38b0a3bafd9c10e6cbfc8b19f8bdb2aea84bc","type":"artist","uuid":"a088306d-4b1f-45a2-addd-7249e917786d"}
album: O Som do Copa 7, Vol. 1
  type: MusicAlbum
  date published: 1979-03-26
  track: Fofoqueira
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284712
    explicit: false
    by artist: Copa 7
    in album: O Som do Copa 7, Vol. 1
      type: MusicAlbum
      date published: 1979-03-26
    genre: pagode baiano
    genre: samba
    isrc code: USDY42302395
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:08:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe75e8f8aea84c967fb60c72373e01a34c1b2b89a47483a66b63ab5b65c10b041
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958711
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958711
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302395
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:26:32Z
    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 0xe75e8f8aea84c967fb60c72373e01a34c1b2b89a47483a66b63ab5b65c10b041. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USDY42302395.
      date published: 2026-07-19T09:26:32Z
    audio: Fofoqueira
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.842
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.811
      additional property: Speechiness
        type: PropertyValue
        value: 0.095
      additional property: Acousticness
        type: PropertyValue
        value: 0.221
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.288
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.868
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.222
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Gangorra
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223200
    explicit: false
    by artist: Copa 7
    in album: O Som do Copa 7, Vol. 1
      type: MusicAlbum
      date published: 1979-03-26
    genre: pagode baiano
    genre: samba
    isrc code: USDY42302396
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T01:49:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70e1f026eb29bd6c0007aa0437e12e56e06dccaca4cc05d208c47b64d098a98b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958480
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958480
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302396
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T02:58:58Z
    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 0x70e1f026eb29bd6c0007aa0437e12e56e06dccaca4cc05d208c47b64d098a98b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USDY42302396.
      date published: 2026-07-18T02:58:58Z
    audio: Gangorra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.703
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.742
      additional property: Energy
        type: PropertyValue
        value: 0.404
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.758
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.507
      additional property: Liveness
        type: PropertyValue
        value: 0.166
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Santo Maior
  track: Anseio
  track: Aos Trancos e Barrancos
  track: Criola
track: Copa Sete No Samba

Valence (Positivity)
type: PropertyValue
value: 0.669

Loudness (dB)
type: PropertyValue
value: -10.051

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Santo Maior
type: MusicRecording
duration: PT3M3S
duration ms: 183720
explicit: false
by artist: Copa 7
in album: O Som do Copa 7, Vol. 1
  type: MusicAlbum
  date published: 1979-03-26
genre: pagode baiano
genre: samba
isrc code: USDY42302399
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T16:40:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e20086aa34fc9f5c4f811376be51003817efef787bf417e0ffd71299d600a5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958316
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958316
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302399
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T19:42:29Z
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 0x0e20086aa34fc9f5c4f811376be51003817efef787bf417e0ffd71299d600a5a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USDY42302399.
  date published: 2026-07-16T19:42:29Z
audio: Santo Maior
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 86.485
  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: 0.694
  additional property: Energy
    type: PropertyValue
    value: 0.806
  additional property: Speechiness
    type: PropertyValue
    value: 0.136
  additional property: Acousticness
    type: PropertyValue
    value: 0.512
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.714
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.806
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Anseio
type: MusicRecording
duration: PT3M58S
duration ms: 238128
explicit: false
by artist: Copa 7
in album: O Som do Copa 7, Vol. 1
  type: MusicAlbum
  date published: 1979-03-26
genre: pagode baiano
genre: samba
isrc code: USDY42302400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T07:40:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0cf66df30beb2755daa71e6b51cfd7af5fd04066b648ee6c56e0591f36cc1cee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958263
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958263
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T08:19:47Z
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 0x0cf66df30beb2755daa71e6b51cfd7af5fd04066b648ee6c56e0591f36cc1cee. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USDY42302400.
  date published: 2026-07-16T08:19:47Z
audio: Anseio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.765
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.502
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.645
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.124
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.551
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.639
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Aos Trancos e Barrancos
type: MusicRecording
duration: PT2M59S
duration ms: 179735
explicit: false
by artist: Copa 7
in album: O Som do Copa 7, Vol. 1
  type: MusicAlbum
  date published: 1979-03-26
genre: pagode baiano
genre: samba
isrc code: USDY42302402
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T13:58:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e75a775ade14ef08d8db4be85cf95b08181fec785052dcdb8062a35533dd1c3
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/USDY42302402
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 0x1e75a775ade14ef08d8db4be85cf95b08181fec785052dcdb8062a35533dd1c3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302402.
  date published: 2026-07-05T18:48:28Z
audio: Aos Trancos e Barrancos
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.707
  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: 0.578
  additional property: Energy
    type: PropertyValue
    value: 0.779
  additional property: Speechiness
    type: PropertyValue
    value: 0.092
  additional property: Acousticness
    type: PropertyValue
    value: 0.171
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.372
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.562
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.071
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Criola
type: MusicRecording
duration: PT3M21S
duration ms: 201384
explicit: false
by artist: Copa 7
in album: O Som do Copa 7, Vol. 1
  type: MusicAlbum
  date published: 1979-03-26
genre: pagode baiano
genre: samba
isrc code: USDY42302404
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T01:32:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7090882334ee6d422b5cea6c256d63631e115bf4782c96317e161acc8eccc2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958224
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958224
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42302404
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T02:28:43Z
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 0xf7090882334ee6d422b5cea6c256d63631e115bf4782c96317e161acc8eccc2b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USDY42302404.
  date published: 2026-07-16T02:28:43Z
audio: Criola
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 192.479
  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: 0.517
  additional property: Energy
    type: PropertyValue
    value: 0.877
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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O Som do Copa 7, Vol. 1
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date published: 2017-05-10

Copa Sete No Samba
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by artist: Copa 7
in album: Mr Bongo Record Club, Vol. 6
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audio: Copa Sete No Samba
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