Les Buchards
type: MusicGroup
popularity: 4
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f9eb39c182986f613a284c8fd52a83b3deee66cd9360e240a14577e1b6bd49d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1242a545-bce8-4f8d-bcbe-c8ae2d883b7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1242a545-bce8-4f8d-bcbe-c8ae2d883b7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1242a545-bce8-4f8d-bcbe-c8ae2d883b7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f9eb39c182986f613a284c8fd52a83b3deee66cd9360e240a14577e1b6bd49d","name":"Les Buchards","registered_at":"2026-06-15T19:58:18Z","symbol":"NIM0815704","token_address":"0x5a9ea1e9b30e00ab8aec32fedd41493cd23d0744","type":"artist","uuid":"1242a545-bce8-4f8d-bcbe-c8ae2d883b7c"}
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 0x6f9eb39c182986f613a284c8fd52a83b3deee66cd9360e240a14577e1b6bd49d. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1242a545-bce8-4f8d-bcbe-c8ae2d883b7c.json and https://artists.proofprofile.net/proofs/artist/1242a545-bce8-4f8d-bcbe-c8ae2d883b7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x6f9eb39c182986f613a284c8fd52a83b3deee66cd9360e240a14577e1b6bd49d","name":"Les Buchards","registered_at":"2026-06-15T19:58:18Z","symbol":"NIM0815704","token_address":"0x5a9ea1e9b30e00ab8aec32fedd41493cd23d0744","type":"artist","uuid":"1242a545-bce8-4f8d-bcbe-c8ae2d883b7c"}
album: On t'emmène
  type: MusicAlbum
  date published: 2024-03-22
  track: On t'emmène
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192000
    explicit: false
    by artist: Les Buchards
    in album: On t'emmène
      type: MusicAlbum
      date published: 2024-03-22
    isrc code: QZHN72408487
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:05:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8060ce2acbae4df60836d560a835267ec2ca390c16453643559e05a36ba0ef58
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958238
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958238
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72408487
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:04:35Z
    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 0x8060ce2acbae4df60836d560a835267ec2ca390c16453643559e05a36ba0ef58. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:35Z), 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/QZHN72408487.
      date published: 2026-07-16T07:04:35Z
    audio: On t'emmène
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.01
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.733
      additional property: Energy
        type: PropertyValue
        value: 0.73
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.062
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.715
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.58
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor