Petra Wolters
type: MusicGroup
popularity: 3
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08f62b584eafdbe8a7cf13e2f16f14aff136d7946323155c0550b9f85d8025b5
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/98eb6f96-1160-4155-92c7-ad509343424a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98eb6f96-1160-4155-92c7-ad509343424a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98eb6f96-1160-4155-92c7-ad509343424a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x08f62b584eafdbe8a7cf13e2f16f14aff136d7946323155c0550b9f85d8025b5","name":"Petra Wolters","registered_at":"2026-06-17T19:03:37Z","symbol":"NIM1489818","token_address":"0x3601e04ccd5a3f0e164cde1707875664eb3b9e61","type":"artist","uuid":"98eb6f96-1160-4155-92c7-ad509343424a"}
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 0x08f62b584eafdbe8a7cf13e2f16f14aff136d7946323155c0550b9f85d8025b5. 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/98eb6f96-1160-4155-92c7-ad509343424a.json and https://artists.proofprofile.net/proofs/artist/98eb6f96-1160-4155-92c7-ad509343424a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x08f62b584eafdbe8a7cf13e2f16f14aff136d7946323155c0550b9f85d8025b5","name":"Petra Wolters","registered_at":"2026-06-17T19:03:37Z","symbol":"NIM1489818","token_address":"0x3601e04ccd5a3f0e164cde1707875664eb3b9e61","type":"artist","uuid":"98eb6f96-1160-4155-92c7-ad509343424a"}
album: Speel kleine meid
  type: MusicAlbum
  date published: 2025-03-27
  track: Speel kleine meid
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201036
    explicit: false
    by artist: Petra Wolters
    in album: Speel kleine meid
      type: MusicAlbum
      date published: 2025-03-27
    isrc code: NLZ422500010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T02:05:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2407390544870ffd50415795ccd1b7a8be25e6ff4428f7c6395671063b55d29f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLZ422500010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x2407390544870ffd50415795ccd1b7a8be25e6ff4428f7c6395671063b55d29f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLZ422500010.
      date published: 2026-07-04T11:19:20Z
    audio: Speel kleine meid
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.979
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.373
      additional property: Energy
        type: PropertyValue
        value: 0.663
      additional property: Speechiness
        type: PropertyValue
        value: 0.137
      additional property: Acousticness
        type: PropertyValue
        value: 0.568
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.246
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.484
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.657
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major