Robert Kasprowicz
type: MusicGroup
popularity: 7
followers: 441
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fafe288d21b9278a653a206efeebef808cc0c87e59b699c54caef8700cdd945
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/492eca38-2f6b-4e73-bb36-ab6a5cc671df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/492eca38-2f6b-4e73-bb36-ab6a5cc671df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/492eca38-2f6b-4e73-bb36-ab6a5cc671df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2fafe288d21b9278a653a206efeebef808cc0c87e59b699c54caef8700cdd945","name":"Robert Kasprowicz","registered_at":"2026-06-16T15:07:46Z","symbol":"NIM1090073","token_address":"0xe314ab262d3b6e35367bf23a8f85e0864a9d987e","type":"artist","uuid":"492eca38-2f6b-4e73-bb36-ab6a5cc671df"}
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 0x2fafe288d21b9278a653a206efeebef808cc0c87e59b699c54caef8700cdd945. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/492eca38-2f6b-4e73-bb36-ab6a5cc671df.json and https://artists.proofprofile.net/proofs/artist/492eca38-2f6b-4e73-bb36-ab6a5cc671df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x2fafe288d21b9278a653a206efeebef808cc0c87e59b699c54caef8700cdd945","name":"Robert Kasprowicz","registered_at":"2026-06-16T15:07:46Z","symbol":"NIM1090073","token_address":"0xe314ab262d3b6e35367bf23a8f85e0864a9d987e","type":"artist","uuid":"492eca38-2f6b-4e73-bb36-ab6a5cc671df"}
album: Dokąd Iść ?
  type: MusicAlbum
  date published: 2016-07-18
album: Moc Miłosierdzia
  type: MusicAlbum
  date published: 2017-08-11
  track: Psalm 23
    type: MusicRecording
    duration: PT4M40S
    duration ms: 280634
    explicit: false
    by artist: Robert Kasprowicz
    in album: Moc Miłosierdzia
      type: MusicAlbum
      date published: 2017-08-11
    isrc code: QZ8LD1742037
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:56:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6791155b9a61666ccee1779c3089a946d1ed75794ffac6aa3d123c0ef231dfd8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1742037
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x6791155b9a61666ccee1779c3089a946d1ed75794ffac6aa3d123c0ef231dfd8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ8LD1742037.
      date published: 2026-07-03T21:18:05Z
    audio: Psalm 23
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.885
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.607
      additional property: Energy
        type: PropertyValue
        value: 0.519
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.762
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.463
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.254
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Twierdza
  type: MusicAlbum
  date published: 2018-03-24
album: My Hope
  type: MusicAlbum
  date published: 2019-12-11