Arellano & O'farrell Quartet
type: MusicGroup
popularity: 4
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6b799f4418208e33d68c76f242e4fc1da4ad6a21e79eb21b9986ecf8712c7ce1
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/0f7c77e9-4433-4832-83bb-cb38d3352aad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f7c77e9-4433-4832-83bb-cb38d3352aad.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b799f4418208e33d68c76f242e4fc1da4ad6a21e79eb21b9986ecf8712c7ce1","name":"Arellano & O'farrell Quartet","registered_at":"2026-06-15T19:01:15Z","symbol":"NIM0802101","token_address":"0x25b06264da1ec24e8e31cc23b73b224aab16b368","type":"artist","uuid":"0f7c77e9-4433-4832-83bb-cb38d3352aad"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b799f4418208e33d68c76f242e4fc1da4ad6a21e79eb21b9986ecf8712c7ce1. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f7c77e9-4433-4832-83bb-cb38d3352aad.json and https://artists.proofprofile.net/proofs/artist/0f7c77e9-4433-4832-83bb-cb38d3352aad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x6b799f4418208e33d68c76f242e4fc1da4ad6a21e79eb21b9986ecf8712c7ce1","name":"Arellano & O'farrell Quartet","registered_at":"2026-06-15T19:01:15Z","symbol":"NIM0802101","token_address":"0x25b06264da1ec24e8e31cc23b73b224aab16b368","type":"artist","uuid":"0f7c77e9-4433-4832-83bb-cb38d3352aad"}
album: Holy God
  type: MusicAlbum
  date published: 2017-09-25
  track: Make My Life an Alleluia
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201866
    explicit: false
    by artist: Arellano & O'farrell Quartet
    in album: Holy God
      type: MusicAlbum
      date published: 2017-09-25
    isrc code: QZ9JZ1777814
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9JZ1777814
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdce55c5685445f76142f2e7e551a01c436f5859f4bcad91649e9fdb23ea0ea7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ9JZ1777814.
      date published: 2026-07-18T12:14:37Z
    audio: Make My Life an Alleluia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.552
      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: 0.205
      additional property: Energy
        type: PropertyValue
        value: 0.193
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.938
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.257
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.32
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major