Les Blanc de Memoire
type: MusicGroup
genre: traditional music
popularity: 5
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf73213b2daf0b1cc3d036f1b617c9bef6d682daedf24cf5b626fc76264d70085
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953970
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953970
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:09:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf73213b2daf0b1cc3d036f1b617c9bef6d682daedf24cf5b626fc76264d70085","name":"Les Blanc de Memoire","registered_at":"2026-06-16T04:13:13Z","symbol":"NIM0933848","token_address":"0xcdb1f278cc7cf2e494a95e8e099b88454ca02304","type":"artist","uuid":"2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83"}
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 0xf73213b2daf0b1cc3d036f1b617c9bef6d682daedf24cf5b626fc76264d70085. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83.json and https://artists.proofprofile.net/proofs/artist/2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xf73213b2daf0b1cc3d036f1b617c9bef6d682daedf24cf5b626fc76264d70085","name":"Les Blanc de Memoire","registered_at":"2026-06-16T04:13:13Z","symbol":"NIM0933848","token_address":"0xcdb1f278cc7cf2e494a95e8e099b88454ca02304","type":"artist","uuid":"2a2f9bb3-b7dc-45b7-9172-3eafaf00cb83"}
album: Moé z'en une
  type: MusicAlbum
  date published: 2016-01-28
  track: La p'tite jument
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140801
    explicit: false
    by artist: Les Blanc de Memoire
    in album: Moé z'en une
      type: MusicAlbum
      date published: 2016-01-28
    genre: traditional music
    isrc code: CAXM41900013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:47:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3864dd5d33d2b2b271f3bd30216ebf977e9a046bcdc84da05182e8df07bced43
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958765
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958765
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAXM41900013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:49:18Z
    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 0x3864dd5d33d2b2b271f3bd30216ebf977e9a046bcdc84da05182e8df07bced43. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:49:18Z), 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/CAXM41900013.
      date published: 2026-07-19T20:49:18Z
    audio: La p'tite jument
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.617
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.822
      additional property: Speechiness
        type: PropertyValue
        value: 0.145
      additional property: Acousticness
        type: PropertyValue
        value: 0.366
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.062
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.965
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.455
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major