Collectif Voix Libres
type: MusicGroup
genre: reggae
popularity: 6
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0f7cd57da43a393f479bff3c1a40e31fef4fbe5f5499a2939b5c1cdb1d9a810
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b38665f-2990-4213-944c-1302c2b31118.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b38665f-2990-4213-944c-1302c2b31118.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b38665f-2990-4213-944c-1302c2b31118
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0f7cd57da43a393f479bff3c1a40e31fef4fbe5f5499a2939b5c1cdb1d9a810","name":"Collectif Voix Libres","registered_at":"2026-06-17T03:01:30Z","symbol":"NIM1260367","token_address":"0xe89d867e62c657c8b90b7c14320b872f3b7fe145","type":"artist","uuid":"6b38665f-2990-4213-944c-1302c2b31118"}
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 0xa0f7cd57da43a393f479bff3c1a40e31fef4fbe5f5499a2939b5c1cdb1d9a810. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b38665f-2990-4213-944c-1302c2b31118.json and https://artists.proofprofile.net/proofs/artist/6b38665f-2990-4213-944c-1302c2b31118.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa0f7cd57da43a393f479bff3c1a40e31fef4fbe5f5499a2939b5c1cdb1d9a810","name":"Collectif Voix Libres","registered_at":"2026-06-17T03:01:30Z","symbol":"NIM1260367","token_address":"0xe89d867e62c657c8b90b7c14320b872f3b7fe145","type":"artist","uuid":"6b38665f-2990-4213-944c-1302c2b31118"}
album: Voix Libres
  type: MusicAlbum
  date published: 2008-12-28
  track: Father
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230026
    explicit: false
    by artist: Collectif Voix Libres
    in album: Voix Libres
      type: MusicAlbum
      date published: 2008-12-28
    genre: reggae
    isrc code: FR6V80908463
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:19:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb87a188ffe00766d27a55b08625d535535639b8f46453e9fa3035553b98a1588
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80908463
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T20:21:54Z
    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 0xb87a188ffe00766d27a55b08625d535535639b8f46453e9fa3035553b98a1588. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:54Z), 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/FR6V80908463.
      date published: 2026-07-15T20:21:54Z
    audio: Father
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.979
      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: 0.819
      additional property: Energy
        type: PropertyValue
        value: 0.386
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.128
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.027
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.44
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.188
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor