Mathieu Gaulin
type: MusicGroup
genre: ragtime
popularity: 3
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd74e526b8576f1020c503975ab2bfd137b2a7cc79dfee459e0c437f7ccd24b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/996bdc8a-ba86-494e-b33a-97505d6c5675.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/996bdc8a-ba86-494e-b33a-97505d6c5675.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/996bdc8a-ba86-494e-b33a-97505d6c5675
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd74e526b8576f1020c503975ab2bfd137b2a7cc79dfee459e0c437f7ccd24b6","name":"Mathieu Gaulin","registered_at":"2026-06-17T19:13:04Z","symbol":"NIM1492078","token_address":"0xe5d1674417e5f77a9eba63e017f9df5af1d26c59","type":"artist","uuid":"996bdc8a-ba86-494e-b33a-97505d6c5675"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd74e526b8576f1020c503975ab2bfd137b2a7cc79dfee459e0c437f7ccd24b6. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/996bdc8a-ba86-494e-b33a-97505d6c5675.json and https://artists.proofprofile.net/proofs/artist/996bdc8a-ba86-494e-b33a-97505d6c5675.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xcd74e526b8576f1020c503975ab2bfd137b2a7cc79dfee459e0c437f7ccd24b6","name":"Mathieu Gaulin","registered_at":"2026-06-17T19:13:04Z","symbol":"NIM1492078","token_address":"0xe5d1674417e5f77a9eba63e017f9df5af1d26c59","type":"artist","uuid":"996bdc8a-ba86-494e-b33a-97505d6c5675"}
album: Brillance: Ragtime to Modernism
  type: MusicAlbum
  date published: 2011-01-25
  track: Valse Vanité
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225358
    explicit: false
    by artist: Mathieu Gaulin
    in album: Brillance: Ragtime to Modernism
      type: MusicAlbum
      date published: 2011-01-25
    genre: ragtime
    isrc code: CALC41001538
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T18:22:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xda3bf0d75b856c2ad6cccd9a7d2875a1344dc13d46f4d54847dc75741eb4df94
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959043
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959043
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41001538
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T18:40:26Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3bf0d75b856c2ad6cccd9a7d2875a1344dc13d46f4d54847dc75741eb4df94. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CALC41001538.
      date published: 2026-07-21T18:40:26Z
    audio: Valse Vanité
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 66.412
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.261
      additional property: Energy
        type: PropertyValue
        value: 0.088
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.89
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.344
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.688
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major