Krzysztof Piechota "Kubryk"
type: MusicGroup
genre: sea shanties
popularity: 10
followers: 846
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeab19711340031615b057e87b6678f06fc8729830b88dd49435cd54c643bdde6
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/4c44c472-58b4-4a8e-b729-6200d3bd1589.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c44c472-58b4-4a8e-b729-6200d3bd1589.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c44c472-58b4-4a8e-b729-6200d3bd1589
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeab19711340031615b057e87b6678f06fc8729830b88dd49435cd54c643bdde6","name":"Krzysztof Piechota \"Kubryk\"","registered_at":"2026-06-16T16:08:23Z","symbol":"NIM1104543","token_address":"0x7fa949b19e681e4f1539da0b1d524410b724bcfa","type":"artist","uuid":"4c44c472-58b4-4a8e-b729-6200d3bd1589"}
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 0xeab19711340031615b057e87b6678f06fc8729830b88dd49435cd54c643bdde6. 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/4c44c472-58b4-4a8e-b729-6200d3bd1589.json and https://artists.proofprofile.net/proofs/artist/4c44c472-58b4-4a8e-b729-6200d3bd1589.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xeab19711340031615b057e87b6678f06fc8729830b88dd49435cd54c643bdde6","name":"Krzysztof Piechota \"Kubryk\"","registered_at":"2026-06-16T16:08:23Z","symbol":"NIM1104543","token_address":"0x7fa949b19e681e4f1539da0b1d524410b724bcfa","type":"artist","uuid":"4c44c472-58b4-4a8e-b729-6200d3bd1589"}
album: Morze nasze morze: Polish sailor songs, Szanty
  type: MusicAlbum
  date published: 2010-11-25
  track: Cholpey z Albatrosa
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253733
    explicit: false
    by artist: Krzysztof Piechota "Kubryk"
    in album: Morze nasze morze: Polish sailor songs, Szanty
      type: MusicAlbum
      date published: 2010-11-25
    genre: sea shanties
    isrc code: PLA801009102
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T17:19:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d970090ae48bdd5f762ae60aa629c966f5987691e86f6154ae4aa087c67b35d
    additional property: OTSHash
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      value: 958448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA801009102
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:49:21Z
    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 0x0d970090ae48bdd5f762ae60aa629c966f5987691e86f6154ae4aa087c67b35d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PLA801009102.
      date published: 2026-07-17T19:49:21Z
    audio: Cholpey z Albatrosa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.963
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.636
      additional property: Energy
        type: PropertyValue
        value: 0.809
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.356
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.892
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.789
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Bosman
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166093
    explicit: false
    by artist: Krzysztof Piechota "Kubryk"
    in album: Morze nasze morze: Polish sailor songs, Szanty
      type: MusicAlbum
      date published: 2010-11-25
    genre: sea shanties
    isrc code: PLA801009104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T04:02:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x53c8b82652eaf0113fed5aa6217b43a2000fd0514c08eeff14b8f38c9668c681
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957650
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957650
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA801009104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T04:18:57Z
    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 0x53c8b82652eaf0113fed5aa6217b43a2000fd0514c08eeff14b8f38c9668c681. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/PLA801009104.
      date published: 2026-07-12T04:18:57Z
    audio: Bosman
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.963
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.698
      additional property: Energy
        type: PropertyValue
        value: 0.78
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.207
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.92
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -5.505

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor