The Dufay Collective
type: MusicGroup
genre: medieval
popularity: 16
followers: 4088
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16917a9f4f334cbf55cd20f5458a65b1299264f082b36cc923e1329161f1cae3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c9d3718-905d-4284-9bdb-156c8796b933.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c9d3718-905d-4284-9bdb-156c8796b933.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c9d3718-905d-4284-9bdb-156c8796b933
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x16917a9f4f334cbf55cd20f5458a65b1299264f082b36cc923e1329161f1cae3","name":"The Dufay Collective","registered_at":"2026-06-14T09:04:49Z","symbol":"NIM0404437","token_address":"0x2c88b9336da268c380cf761ea0250b78cf2fc1eb","type":"artist","uuid":"2c9d3718-905d-4284-9bdb-156c8796b933"}
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 0x16917a9f4f334cbf55cd20f5458a65b1299264f082b36cc923e1329161f1cae3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c9d3718-905d-4284-9bdb-156c8796b933.json and https://artists.proofprofile.net/proofs/artist/2c9d3718-905d-4284-9bdb-156c8796b933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x16917a9f4f334cbf55cd20f5458a65b1299264f082b36cc923e1329161f1cae3","name":"The Dufay Collective","registered_at":"2026-06-14T09:04:49Z","symbol":"NIM0404437","token_address":"0x2c88b9336da268c380cf761ea0250b78cf2fc1eb","type":"artist","uuid":"2c9d3718-905d-4284-9bdb-156c8796b933"}
album: Johnny, Cock Thy Beaver - Popular Music-Making in 17th Century England
  type: MusicAlbum
  date published: 1996-05-01
album: Johnny, Cock thy Beaver
  type: MusicAlbum
  date published: 1996-05-01
album: Johnny, Cock thy Beaver
  type: MusicAlbum
  date published: 1996-05-01
album: Music Of The Trouveres
  type: MusicAlbum
  date published: 1997-04-01
album: Cancionero: Music for the Spanish Court (1470–1520)
  type: MusicAlbum
  date published: 2002
album: Music for Alfonso the Wise
  type: MusicAlbum
  date published: 2005-11-03
album: Music for Alfonso the Wise
  type: MusicAlbum
  date published: 2005-11-03
album: Music for Alfonso the Wise
  type: MusicAlbum
  date published: 2005-11-03
album: A L'Estampida - Medieval Dance Music
  type: MusicAlbum
  date published: 2006-01-01
  track: La Rotta
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217013
    explicit: false
    by artist: The Dufay Collective
    in album: A L'Estampida - Medieval Dance Music
      type: MusicAlbum
      date published: 2006-01-01
    genre: medieval
    isrc code: GBELX0200293
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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      value: 2026-07-18T15:44:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7040a816661b534f4245335e90331c8e654010825ccb6b341783214d3d295633
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0200293
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 0x7040a816661b534f4245335e90331c8e654010825ccb6b341783214d3d295633. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBELX0200293.
      date published: 2026-07-18T16:22:28Z
    audio: La Rotta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.037
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.507
      additional property: Energy
        type: PropertyValue
        value: 0.665
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.098
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.905
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.772
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.696
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major