Yvan Cujious
type: MusicGroup
genre: chanson
genre: french pop
popularity: 9
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe42bdb7fde5d2ba42f51854aa76f32e8c235f2d3508c659227c280933ea1028b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d6f372e-0cba-4e58-a342-1186bb18b207.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d6f372e-0cba-4e58-a342-1186bb18b207.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d6f372e-0cba-4e58-a342-1186bb18b207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe42bdb7fde5d2ba42f51854aa76f32e8c235f2d3508c659227c280933ea1028b","name":"Yvan Cujious","registered_at":"2026-06-16T11:17:45Z","symbol":"NIM1035205","token_address":"0xf7993fa1a92cb9d726099c22226c8e0a21c53efc","type":"artist","uuid":"3d6f372e-0cba-4e58-a342-1186bb18b207"}
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 0xe42bdb7fde5d2ba42f51854aa76f32e8c235f2d3508c659227c280933ea1028b. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d6f372e-0cba-4e58-a342-1186bb18b207.json and https://artists.proofprofile.net/proofs/artist/3d6f372e-0cba-4e58-a342-1186bb18b207.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:57:22Z
  text: {"copyright_id":"0xe42bdb7fde5d2ba42f51854aa76f32e8c235f2d3508c659227c280933ea1028b","name":"Yvan Cujious","registered_at":"2026-06-16T11:17:45Z","symbol":"NIM1035205","token_address":"0xf7993fa1a92cb9d726099c22226c8e0a21c53efc","type":"artist","uuid":"3d6f372e-0cba-4e58-a342-1186bb18b207"}
album: Tout Le Monde M'aime
  type: MusicAlbum
  date published: 2009-05-18
album: Tout le monde m'aime !
  type: MusicAlbum
  date published: 2011
album: J'aime tous les gens
  type: MusicAlbum
  date published: 2011
album: Cécile, ma fille
  type: MusicAlbum
  date published: 2024-03-22
album: Cécile, ma fille
  type: MusicAlbum
  date published: 2024-03-22
album: Une voix, six cordes - De Claude à Nougaro
  type: MusicAlbum
  date published: 2024-05-31
  track: Cécile, ma fille
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221135
    explicit: false
    by artist: Yvan Cujious
    in album: Une voix, six cordes - De Claude à Nougaro
      type: MusicAlbum
      date published: 2024-05-31
    genre: chanson
    genre: french pop
    isrc code: FR7MQ2400200
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T10:12:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98a5d7157a41b19f8949e874a2648f848592dd4a9eb8dd6a2c0decaaf03ac319
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7MQ2400200
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x98a5d7157a41b19f8949e874a2648f848592dd4a9eb8dd6a2c0decaaf03ac319. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR7MQ2400200.
      date published: 2026-07-02T16:51:38Z
    audio: Cécile, ma fille
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.821
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.608
      additional property: Energy
        type: PropertyValue
        value: 0.245
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.92
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.136
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.485
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.005
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Toulouse
    type: MusicRecording
    duration: PT4M53S
    duration ms: 293728
    explicit: false
    by artist: Yvan Cujious
    in album: Une voix, six cordes - De Claude à Nougaro
      type: MusicAlbum
      date published: 2024-05-31
    genre: chanson
    genre: french pop
    isrc code: FR7MQ2400300
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:51:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4df927fe3e6fce0cfaf258bbfec91f5326e39bf36469387708c41cfe5ef7df29
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958716
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958716
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7MQ2400300
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    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 0x4df927fe3e6fce0cfaf258bbfec91f5326e39bf36469387708c41cfe5ef7df29. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR7MQ2400300.
      date published: 2026-07-19T10:15:55Z
    audio: Toulouse
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.809
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.57
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Rimes

Energy
type: PropertyValue
value: 0.415

Speechiness
type: PropertyValue
value: 0.086

Acousticness
type: PropertyValue
value: 0.941

Instrumentalness
type: PropertyValue
value: 0.029

Liveness
type: PropertyValue
value: 0.196

Valence (Positivity)
type: PropertyValue
value: 0.375

Loudness (dB)
type: PropertyValue
value: -12.958

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Rimes
type: MusicAlbum
date published: 2024-05-31