Krzysztof Pietrek
type: MusicGroup
genre: disco polo
popularity: 6
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7b18f874c79dfa655af1486c1599f8814a4e892619c1ca85394402705ed3d4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/462561ec-b10d-4621-81fd-02ecca722599.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/462561ec-b10d-4621-81fd-02ecca722599.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/462561ec-b10d-4621-81fd-02ecca722599
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7b18f874c79dfa655af1486c1599f8814a4e892619c1ca85394402705ed3d4d","name":"Krzysztof Pietrek","registered_at":"2026-06-16T13:59:42Z","symbol":"NIM1073831","token_address":"0x1bf59a6c506ebb8087b7bf82cb38155e0fe7eedf","type":"artist","uuid":"462561ec-b10d-4621-81fd-02ecca722599"}
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 0xc7b18f874c79dfa655af1486c1599f8814a4e892619c1ca85394402705ed3d4d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/462561ec-b10d-4621-81fd-02ecca722599.json and https://artists.proofprofile.net/proofs/artist/462561ec-b10d-4621-81fd-02ecca722599.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc7b18f874c79dfa655af1486c1599f8814a4e892619c1ca85394402705ed3d4d","name":"Krzysztof Pietrek","registered_at":"2026-06-16T13:59:42Z","symbol":"NIM1073831","token_address":"0x1bf59a6c506ebb8087b7bf82cb38155e0fe7eedf","type":"artist","uuid":"462561ec-b10d-4621-81fd-02ecca722599"}
album: Spełniać marzenia
  type: MusicAlbum
  date published: 2021-11-25
  track: Amigo
    type: MusicRecording
    duration: PT4M31S
    duration ms: 271846
    explicit: false
    by artist: Krzysztof Pietrek
    in album: Spełniać marzenia
      type: MusicAlbum
      date published: 2021-11-25
    genre: disco polo
    isrc code: QZPLR2193319
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:58:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaee2f5d3d20f10514b4375df39bc2db376b8bd9e78b9ceb4fd79812055accc90
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2193319
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xaee2f5d3d20f10514b4375df39bc2db376b8bd9e78b9ceb4fd79812055accc90. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPLR2193319.
      date published: 2026-07-05T19:27:56Z
    audio: Amigo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.007
      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: 0.731
      additional property: Energy
        type: PropertyValue
        value: 0.821
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.157
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.354
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.612
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.393
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Rodzinne święta
  type: MusicAlbum
  date published: 2022-12-18
album: Wygrany Los
  type: MusicAlbum
  date published: 2023-07-28
  track: Bo życie takie jest
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173606
    explicit: false
    by artist: Krzysztof Pietrek
    in album: Wygrany Los
      type: MusicAlbum
      date published: 2023-07-28
    genre: disco polo
    isrc code: QZNWX2358277
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T23:27:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf343678967c7b59662bde4669b51a744a9624a4a90121d60dd631ef076c15959
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958798
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958798
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2358277
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:29:39Z
    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 0xf343678967c7b59662bde4669b51a744a9624a4a90121d60dd631ef076c15959. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:29:39Z), 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/QZNWX2358277.
      date published: 2026-07-20T02:29:39Z
    audio: Bo życie takie jest
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.047
      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: 0.806
      additional property: Energy
        type: PropertyValue
        value: 0.705
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.024
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Karlus Idealny (Radio Edit)
album: Razem od tylu lat
album: To dla nas jest czas
album: Z uśmechem powitaj dzień
album: Cudowny sen
album: Dziś tańczmy

Liveness
type: PropertyValue
value: 0.158

Valence (Positivity)
type: PropertyValue
value: 0.741

Loudness (dB)
type: PropertyValue
value: -7.1

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Karlus Idealny (Radio Edit)
type: MusicAlbum
date published: 2024-02-19

Razem od tylu lat
type: MusicAlbum
date published: 2024-03-19

To dla nas jest czas
type: MusicAlbum
date published: 2024-05-04

Z uśmechem powitaj dzień
type: MusicAlbum
date published: 2024-08-09

Cudowny sen
type: MusicAlbum
date published: 2025-02-04

Dziś tańczmy
type: MusicAlbum
date published: 2025-07-03