Laetitia Tremolet de Villers
type: MusicGroup
popularity: 7
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/084a835a-4a03-45b7-be84-ae316a7de01e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d","name":"Laetitia Tremolet de Villers","registered_at":"2026-06-15T16:22:45Z","symbol":"NIM0764281","token_address":"0xfe1cfa8242a86550b0e6d4b95c1a63beb9bbbdba","type":"artist","uuid":"084a835a-4a03-45b7-be84-ae316a7de01e"}
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 0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.json and https://artists.proofprofile.net/proofs/artist/084a835a-4a03-45b7-be84-ae316a7de01e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x3e9131cdafa8965dac6061fe1017097e7edfe5a921f71a2ab0910efdcecede1d","name":"Laetitia Tremolet de Villers","registered_at":"2026-06-15T16:22:45Z","symbol":"NIM0764281","token_address":"0xfe1cfa8242a86550b0e6d4b95c1a63beb9bbbdba","type":"artist","uuid":"084a835a-4a03-45b7-be84-ae316a7de01e"}
album: La merveilleuse histoire de la Nativité
  type: MusicAlbum
  date published: 2015-01-01
  track: Voici que l'ange Gabriel
    type: MusicRecording
    duration: PT1M22S
    duration ms: 82333
    explicit: false
    by artist: Laetitia Tremolet de Villers
    in album: La merveilleuse histoire de la Nativité
      type: MusicAlbum
      date published: 2015-01-01
    isrc code: FR8M81500040
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T09:32:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa85ccf373b0d6a323d62e27afbf3f31d97403657cedfbed79fb7b7d38c6dce48
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958276
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958276
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8M81500040
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:33:48Z
    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 0xa85ccf373b0d6a323d62e27afbf3f31d97403657cedfbed79fb7b7d38c6dce48. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:48Z), 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/FR8M81500040.
      date published: 2026-07-16T12:33:48Z
    audio: Voici que l'ange Gabriel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.544
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.382
      additional property: Energy
        type: PropertyValue
        value: 0.187
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.842
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.624
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.303
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.366
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor