Hélène Houzel
type: MusicGroup
popularity: 4
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x15ba13415b346ec51981dff502217d3372d99cc0fe20dd44c3768db6c83855dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953892
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953892
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e8bde18-bd3b-42fa-bfb6-f453c25cc75e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e8bde18-bd3b-42fa-bfb6-f453c25cc75e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0e8bde18-bd3b-42fa-bfb6-f453c25cc75e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:01:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x15ba13415b346ec51981dff502217d3372d99cc0fe20dd44c3768db6c83855dd","name":"Hélène Houzel","registered_at":"2026-06-15T18:33:06Z","symbol":"NIM0795387","token_address":"0x9dbd4e168088716ab87e0091f53ab002893ee71f","type":"artist","uuid":"0e8bde18-bd3b-42fa-bfb6-f453c25cc75e"}
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 0x15ba13415b346ec51981dff502217d3372d99cc0fe20dd44c3768db6c83855dd. Chain 2 (Bitcoin): anchored in block 953892 (2026-06-16T05:01:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e8bde18-bd3b-42fa-bfb6-f453c25cc75e.json and https://artists.proofprofile.net/proofs/artist/0e8bde18-bd3b-42fa-bfb6-f453c25cc75e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T05:01:46Z
  text: {"copyright_id":"0x15ba13415b346ec51981dff502217d3372d99cc0fe20dd44c3768db6c83855dd","name":"Hélène Houzel","registered_at":"2026-06-15T18:33:06Z","symbol":"NIM0795387","token_address":"0x9dbd4e168088716ab87e0091f53ab002893ee71f","type":"artist","uuid":"0e8bde18-bd3b-42fa-bfb6-f453c25cc75e"}
track: Harmonia Artificioso Ariosa, Partia IV in Eb Major: I. Sonata [1]
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185613
  explicit: false
  by artist: Heinrich Ignaz Franz von Biber
  by artist: La Tempesta
  by artist: Patrick Bismuth
  by artist: Hélène Houzel
  in album: Biber: Harmonia Artificioso Ariosa
    type: MusicAlbum
    date published: 2015-09-15
  genre: early-music
  genre: baroque
  genre: bohemian-baroque
  isrc code: FR9W11511437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T06:47:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x51ab7030680f0e6cdf5585d837e3d4ca55a6bb448a12c3e96cfe664ba3bd791f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11511437
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x51ab7030680f0e6cdf5585d837e3d4ca55a6bb448a12c3e96cfe664ba3bd791f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR9W11511437.
    date published: 2026-07-02T03:55:08Z
  audio: Harmonia Artificioso Ariosa, Partia IV in Eb Major: I. Sonata [1]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.226
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.216
    additional property: Energy
      type: PropertyValue
      value: 0.215
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.851
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.9
    additional property: Liveness
      type: PropertyValue
      value: 0.318
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.228
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.826
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor