Janek Stokowski
type: MusicGroup
genre: polka
popularity: 13
followers: 510
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d262da6c34191343f699e81d3b9c7282e4dca4def08904feec96b9378de9c1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fe9ab53-65de-4ca0-bae8-cca1bd4b873f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fe9ab53-65de-4ca0-bae8-cca1bd4b873f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fe9ab53-65de-4ca0-bae8-cca1bd4b873f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d262da6c34191343f699e81d3b9c7282e4dca4def08904feec96b9378de9c1f","name":"Janek Stokowski","registered_at":"2026-06-14T16:17:29Z","symbol":"NIM0507676","token_address":"0xecd4d380d47dc8e392e29e7ebbd12ac9ad159417","type":"artist","uuid":"6fe9ab53-65de-4ca0-bae8-cca1bd4b873f"}
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 0x5d262da6c34191343f699e81d3b9c7282e4dca4def08904feec96b9378de9c1f. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fe9ab53-65de-4ca0-bae8-cca1bd4b873f.json and https://artists.proofprofile.net/proofs/artist/6fe9ab53-65de-4ca0-bae8-cca1bd4b873f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0x5d262da6c34191343f699e81d3b9c7282e4dca4def08904feec96b9378de9c1f","name":"Janek Stokowski","registered_at":"2026-06-14T16:17:29Z","symbol":"NIM0507676","token_address":"0xecd4d380d47dc8e392e29e7ebbd12ac9ad159417","type":"artist","uuid":"6fe9ab53-65de-4ca0-bae8-cca1bd4b873f"}
album: Akordeonowe Party - Tańczący Akordeon Vol.4
  type: MusicAlbum
  date published: 2012
  track: Marsz Starzy Przyjaciele
    type: MusicRecording
    duration: PT4M29S
    duration ms: 269666
    explicit: false
    by artist: Janek Stokowski
    in album: Akordeonowe Party - Tańczący Akordeon Vol.4
      type: MusicAlbum
      date published: 2012
    genre: polka
    isrc code: PLO381501079
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:41:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85858ad7e81d96eb0b91ac459c60c8d1a9b7c0b1712e92ea1c66c5e6340ca074
    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/PLO381501079
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85858ad7e81d96eb0b91ac459c60c8d1a9b7c0b1712e92ea1c66c5e6340ca074. 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/PLO381501079.
      date published: 2026-07-05T01:12:41Z
    audio: Marsz Starzy Przyjaciele
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.907
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.955
      additional property: Energy
        type: PropertyValue
        value: 0.541
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.675
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.909
      additional property: Liveness
        type: PropertyValue
        value: 0.063
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.98
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.461
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Akordeonowe Party - Tańczący Akordeon Vol.3
  type: MusicAlbum
  date published: 2012
  track: Troszeczkę Ziemi Troszeczkę Słońca
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186693
    explicit: false
    by artist: Janek Stokowski
    in album: Akordeonowe Party - Tańczący Akordeon Vol.3
      type: MusicAlbum
      date published: 2012
    genre: polka
    isrc code: PLO381501104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:17:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x086c5caf1fd58359483350fcb1d7cf850ab514b30024a2cf078b080368b66101
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLO381501104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x086c5caf1fd58359483350fcb1d7cf850ab514b30024a2cf078b080368b66101. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PLO381501104.
      date published: 2026-07-06T01:26:17Z
    audio: Troszeczkę Ziemi Troszeczkę Słońca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.886
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.677
      additional property: Energy
        type: PropertyValue
        value: 0.536
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.244
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.362
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Akordeonowe Party - Tańczący Akordeon Vol.5
album: Akordeonowe Party - Tańczący Akordeon Vol.6
album: Akordeonowe Party - Tańczący Akordeon Vol.7
album: U Ciotki Bal
album: Akordeonowe Party - Najpiękniejsze Tanga i Walce
album: Akordeonowe Party - Najpiękniejsze Polki i Oberki
album: Piosenki Warszawskiej Ulicy

Valence (Positivity)
type: PropertyValue
value: 0.812

Loudness (dB)
type: PropertyValue
value: -10.989

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

Akordeonowe Party - Tańczący Akordeon Vol.5
type: MusicAlbum
date published: 2013

Akordeonowe Party - Tańczący Akordeon Vol.6
type: MusicAlbum
date published: 2013

Akordeonowe Party - Tańczący Akordeon Vol.7
type: MusicAlbum
date published: 2015

U Ciotki Bal
type: MusicAlbum
date published: 2015

Akordeonowe Party - Najpiękniejsze Tanga i Walce
type: MusicAlbum
date published: 2016-06-12

Akordeonowe Party - Najpiękniejsze Polki i Oberki
type: MusicAlbum
date published: 2016-06-12

Piosenki Warszawskiej Ulicy
type: MusicAlbum
date published: 2016-06-12