David Durham
type: MusicGroup
popularity: 11
followers: 635
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda0365e3ee237b94d5b0216d3bd2cddb95bcd1d0ecece27b982b4b8660935f43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0105802-fccd-402f-8923-d168b9eb6701.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0105802-fccd-402f-8923-d168b9eb6701.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0105802-fccd-402f-8923-d168b9eb6701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xda0365e3ee237b94d5b0216d3bd2cddb95bcd1d0ecece27b982b4b8660935f43","name":"David Durham","registered_at":"2026-06-15T02:18:34Z","symbol":"NIM0651114","token_address":"0x345e1198687f671fd41844f050e37e12c2ba5daf","type":"artist","uuid":"d0105802-fccd-402f-8923-d168b9eb6701"}
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 0xda0365e3ee237b94d5b0216d3bd2cddb95bcd1d0ecece27b982b4b8660935f43. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0105802-fccd-402f-8923-d168b9eb6701.json and https://artists.proofprofile.net/proofs/artist/d0105802-fccd-402f-8923-d168b9eb6701.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0xda0365e3ee237b94d5b0216d3bd2cddb95bcd1d0ecece27b982b4b8660935f43","name":"David Durham","registered_at":"2026-06-15T02:18:34Z","symbol":"NIM0651114","token_address":"0x345e1198687f671fd41844f050e37e12c2ba5daf","type":"artist","uuid":"d0105802-fccd-402f-8923-d168b9eb6701"}
album: Compilation (L'heure est venue & Peuples de la terre)
  type: MusicAlbum
  date published: 2004-01-01
album: Je sais
  type: MusicAlbum
  date published: 2006-01-01
  track: Mon ancre et ma voile
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216066
    explicit: false
    by artist: David Durham
    in album: Je sais
      type: MusicAlbum
      date published: 2006-01-01
    isrc code: CH7940300032
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:33:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc449bb0a6285a6fc5e107e6bffb2114254c77656f217834587459f968469c441
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958166
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958166
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7940300032
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:35:05Z
    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 0xc449bb0a6285a6fc5e107e6bffb2114254c77656f217834587459f968469c441. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:35:05Z), 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/CH7940300032.
      date published: 2026-07-15T16:35:05Z
    audio: Mon ancre et ma voile
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.02
      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: 0.344
      additional property: Energy
        type: PropertyValue
        value: 0.268
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.552
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.024
      additional property: Liveness
        type: PropertyValue
        value: 0.209
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.189
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.26
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major