Maciej Canton Piotrowski
type: MusicGroup
popularity: 6
followers: 103
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ae8c64a10e0aabfec8b6b13c7529ad605c2aac8526b021d64f66cef175feaa7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be61f55a-431d-4353-aa5f-fb8fd4106941.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be61f55a-431d-4353-aa5f-fb8fd4106941.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be61f55a-431d-4353-aa5f-fb8fd4106941
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ae8c64a10e0aabfec8b6b13c7529ad605c2aac8526b021d64f66cef175feaa7","name":"Maciej Canton Piotrowski","registered_at":"2026-06-20T18:12:27Z","symbol":"NIM1675436","token_address":"0x052da70a5baeffab06ce0bf94d133c91f8a21278","type":"artist","uuid":"be61f55a-431d-4353-aa5f-fb8fd4106941"}
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 0x1ae8c64a10e0aabfec8b6b13c7529ad605c2aac8526b021d64f66cef175feaa7. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be61f55a-431d-4353-aa5f-fb8fd4106941.json and https://artists.proofprofile.net/proofs/artist/be61f55a-431d-4353-aa5f-fb8fd4106941.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x1ae8c64a10e0aabfec8b6b13c7529ad605c2aac8526b021d64f66cef175feaa7","name":"Maciej Canton Piotrowski","registered_at":"2026-06-20T18:12:27Z","symbol":"NIM1675436","token_address":"0x052da70a5baeffab06ce0bf94d133c91f8a21278","type":"artist","uuid":"be61f55a-431d-4353-aa5f-fb8fd4106941"}
album: Ona ma Ajfona
  type: MusicAlbum
  date published: 2024-09-09
  track: Ona ma Ajfona
    type: MusicRecording
    duration: PT2M1S
    duration ms: 121695
    explicit: false
    by artist: Maciej Canton Piotrowski
    in album: Ona ma Ajfona
      type: MusicAlbum
      date published: 2024-09-09
    isrc code: QZTBE2457398
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:56:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b330bde8fd973a797e484e237306180d496a3ca752cb3a3309515f55b90d8ae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBE2457398
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x7b330bde8fd973a797e484e237306180d496a3ca752cb3a3309515f55b90d8ae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBE2457398.
      date published: 2026-07-05T01:12:41Z
    audio: Ona ma Ajfona
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.088
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.824
      additional property: Energy
        type: PropertyValue
        value: 0.419
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.743
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.126
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.809
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.827
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
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  type: MusicAlbum
  date published: 2024-10-08
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  type: MusicAlbum
  date published: 2024-11-08
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  type: MusicAlbum
  date published: 2024-11-17
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  type: MusicAlbum
  date published: 2025-01-08
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  type: MusicAlbum
  date published: 2025-02-12
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  type: MusicAlbum
  date published: 2025-03-16
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  type: MusicAlbum
  date published: 2025-04-10
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  type: MusicAlbum
  date published: 2025-05-23
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  type: MusicAlbum
  date published: 2025-06-27
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  type: MusicAlbum
  date published: 2025-07-24