Jan Kyks Skrzek i Bezdomne Psy
type: MusicGroup
popularity: 3
followers: 226
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/b66f2419-a2e9-4a62-b324-7c357675f449.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/b66f2419-a2e9-4a62-b324-7c357675f449.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b66f2419-a2e9-4a62-b324-7c357675f449
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x490edbd0b1b48fca308f53e8176f865dcabdfb2e43ed34d6a707945d4161946b","name":"Jan Kyks Skrzek i Bezdomne Psy","registered_at":"2026-06-20T14:43:06Z","symbol":"NIM1636343","token_address":"0xa8e01ebdf8e04da482dc6d262d270ad33db490c5","type":"artist","uuid":"b66f2419-a2e9-4a62-b324-7c357675f449"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490edbd0b1b48fca308f53e8176f865dcabdfb2e43ed34d6a707945d4161946b. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b66f2419-a2e9-4a62-b324-7c357675f449.json and https://artists.proofprofile.net/proofs/artist/b66f2419-a2e9-4a62-b324-7c357675f449.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x490edbd0b1b48fca308f53e8176f865dcabdfb2e43ed34d6a707945d4161946b","name":"Jan Kyks Skrzek i Bezdomne Psy","registered_at":"2026-06-20T14:43:06Z","symbol":"NIM1636343","token_address":"0xa8e01ebdf8e04da482dc6d262d270ad33db490c5","type":"artist","uuid":"b66f2419-a2e9-4a62-b324-7c357675f449"}
album: Kyksówka blues
  type: MusicAlbum
  date published: 1989-09-01
album: Nowy świat blues
  type: MusicAlbum
  date published: 1992-09-01
  track: O mój Śląsku
    type: MusicRecording
    duration: PT5M58S
    duration ms: 358706
    explicit: false
    by artist: Jan Kyks Skrzek i Bezdomne Psy
    in album: Nowy świat blues
      type: MusicAlbum
      date published: 1992-09-01
    isrc code: PLA642010654
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/959073
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA642010654
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T23:25:37Z
    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 0x9fc0e30125f7ec0acc9783f7850dcf2e03257fb3b6690cf10fc1c5f7279aa5f1. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/PLA642010654.
      date published: 2026-07-21T23:25:37Z
    audio: O mój Śląsku
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.396
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.437
      additional property: Energy
        type: PropertyValue
        value: 0.248
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.209
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.246
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.747
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor