Helene Roche
type: MusicGroup
popularity: 17
followers: 257
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80fdff6b0d8749e0c93a3b4e9417944b8ce5dd9b3046b9143f2afc7fbe2e826c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953681
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953681
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/651c270a-d52f-4697-a472-d6626e82a8eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/651c270a-d52f-4697-a472-d6626e82a8eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/651c270a-d52f-4697-a472-d6626e82a8eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:31:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80fdff6b0d8749e0c93a3b4e9417944b8ce5dd9b3046b9143f2afc7fbe2e826c","name":"Helene Roche","registered_at":"2026-06-14T15:03:04Z","symbol":"NIM0489917","token_address":"0x95f4ec96184443b6c402ef404c361a524e96104e","type":"artist","uuid":"651c270a-d52f-4697-a472-d6626e82a8eb"}
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 0x80fdff6b0d8749e0c93a3b4e9417944b8ce5dd9b3046b9143f2afc7fbe2e826c. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/651c270a-d52f-4697-a472-d6626e82a8eb.json and https://artists.proofprofile.net/proofs/artist/651c270a-d52f-4697-a472-d6626e82a8eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x80fdff6b0d8749e0c93a3b4e9417944b8ce5dd9b3046b9143f2afc7fbe2e826c","name":"Helene Roche","registered_at":"2026-06-14T15:03:04Z","symbol":"NIM0489917","token_address":"0x95f4ec96184443b6c402ef404c361a524e96104e","type":"artist","uuid":"651c270a-d52f-4697-a472-d6626e82a8eb"}
album: Veracity
  type: MusicAlbum
  date published: 2019-07-03
album: Nightlight
  type: MusicAlbum
  date published: 2019-10-28
  track: Nightlight
    type: MusicRecording
    duration: PT2M9S
    duration ms: 129282
    explicit: false
    by artist: Helene Roche
    in album: Nightlight
      type: MusicAlbum
      date published: 2019-10-28
    isrc code: SE5IB1901339
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:22:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x09dca9140df83a1985a6468e00848cd2fbdca75e16f53d11fa16d813b56101d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956404
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956404
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB1901339
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:25:45Z
    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 0x09dca9140df83a1985a6468e00848cd2fbdca75e16f53d11fa16d813b56101d4. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:25:45Z), 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/SE5IB1901339.
      date published: 2026-07-17T04:25:45Z
    audio: Nightlight
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 32.892
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.438
      additional property: Energy
        type: PropertyValue
        value: 0.005
      additional property: Speechiness
        type: PropertyValue
        value: 0.11
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.965
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.254
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.323
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major