La Chorale d'enfants de l'école de musique de Bois d'Arcy
type: MusicGroup
genre: chanson
genre: lullaby
popularity: 14
followers: 1228
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fea2bc217ab5fa5073c39033433755d698abcbd28f3b1f2ac94bed4736ab913. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc193f01-606d-4bb6-a3e4-85e6a7a9eff4.json and https://artists.proofprofile.net/proofs/artist/fc193f01-606d-4bb6-a3e4-85e6a7a9eff4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0x3fea2bc217ab5fa5073c39033433755d698abcbd28f3b1f2ac94bed4736ab913","name":"La Chorale d'enfants de l'école de musique de Bois d'Arcy","registered_at":"2026-06-15T07:00:41Z","symbol":"NIM0718449","token_address":"0x41add8f4ccef64c98b99d305da415d210f6211b2","type":"artist","uuid":"fc193f01-606d-4bb6-a3e4-85e6a7a9eff4"}
album: Le pays des chansons
  type: MusicAlbum
  date published: 2001-07-23
  track: L'île aux enfants
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150813
    explicit: false
    by artist: La Chorale d'enfants de l'école de musique de Bois d'Arcy
    in album: Le pays des chansons
      type: MusicAlbum
      date published: 2001-07-23
    genre: chanson
    genre: lullaby
    isrc code: FRZ089400440
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x3076a487bfae3d2483cfbe53f546c80f079596675df3f58c1ef6f58c3b4e1859. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRZ089400440.
      date published: 2026-07-04T11:19:20Z
    audio: L'île aux enfants
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.284
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
        value: 0.623
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.519
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.719
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.326
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major