Clarence David
type: MusicGroup
popularity: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56e3688bc027b796e5538edfa21e0eb0d0b94c0cb655622461c5318d18f70550
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3adea90f-486f-46be-b5e5-e8405ebfeca2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3adea90f-486f-46be-b5e5-e8405ebfeca2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3adea90f-486f-46be-b5e5-e8405ebfeca2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56e3688bc027b796e5538edfa21e0eb0d0b94c0cb655622461c5318d18f70550","name":"Clarence David","registered_at":"2026-06-16T10:04:53Z","symbol":"NIM1017822","token_address":"0x4f0b9c37607bf4fa5455d6c5737a6ee2d19951c1","type":"artist","uuid":"3adea90f-486f-46be-b5e5-e8405ebfeca2"}
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 0x56e3688bc027b796e5538edfa21e0eb0d0b94c0cb655622461c5318d18f70550. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3adea90f-486f-46be-b5e5-e8405ebfeca2.json and https://artists.proofprofile.net/proofs/artist/3adea90f-486f-46be-b5e5-e8405ebfeca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0x56e3688bc027b796e5538edfa21e0eb0d0b94c0cb655622461c5318d18f70550","name":"Clarence David","registered_at":"2026-06-16T10:04:53Z","symbol":"NIM1017822","token_address":"0x4f0b9c37607bf4fa5455d6c5737a6ee2d19951c1","type":"artist","uuid":"3adea90f-486f-46be-b5e5-e8405ebfeca2"}
album: Haappy Trails
  type: MusicAlbum
  date published: 2024-12-05
  track: Apuache
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203633
    explicit: false
    by artist: Clarence David
    in album: Haappy Trails
      type: MusicAlbum
      date published: 2024-12-05
    isrc code: QZMHP2557963
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:51:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e98325853b6d25ec9a71bbe1a5c787899d85e855a4312c9bec77cb79ccd7b43
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHP2557963
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:55:23Z
    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 0x5e98325853b6d25ec9a71bbe1a5c787899d85e855a4312c9bec77cb79ccd7b43. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:23Z), 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/QZMHP2557963.
      date published: 2026-07-19T19:55:23Z
    audio: Apuache
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.074
      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: 0.592
      additional property: Energy
        type: PropertyValue
        value: 0.741
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.015
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.46
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.699
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor