Rafał Chojnacki
type: MusicGroup
genre: sea shanties
popularity: 7
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6633aa2ea21b88f46facf26556fe2b05f5accbb84b25f4ae3465d908f2f3224
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e35539-bdc0-48f5-b63f-4dbb58b6973e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e35539-bdc0-48f5-b63f-4dbb58b6973e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6e35539-bdc0-48f5-b63f-4dbb58b6973e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6633aa2ea21b88f46facf26556fe2b05f5accbb84b25f4ae3465d908f2f3224","name":"Rafał Chojnacki","registered_at":"2026-06-21T15:46:08Z","symbol":"NIM1959780","token_address":"0xd263d07fa8abfff992e2ce0f01807b9aa43f5570","type":"artist","uuid":"f6e35539-bdc0-48f5-b63f-4dbb58b6973e"}
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 0xa6633aa2ea21b88f46facf26556fe2b05f5accbb84b25f4ae3465d908f2f3224. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6e35539-bdc0-48f5-b63f-4dbb58b6973e.json and https://artists.proofprofile.net/proofs/artist/f6e35539-bdc0-48f5-b63f-4dbb58b6973e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xa6633aa2ea21b88f46facf26556fe2b05f5accbb84b25f4ae3465d908f2f3224","name":"Rafał Chojnacki","registered_at":"2026-06-21T15:46:08Z","symbol":"NIM1959780","token_address":"0xd263d07fa8abfff992e2ce0f01807b9aa43f5570","type":"artist","uuid":"f6e35539-bdc0-48f5-b63f-4dbb58b6973e"}
album: Ballada portowa
  type: MusicAlbum
  date published: 2015-06-10
  track: Ballada portowa
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213472
    explicit: false
    by artist: Rafał Chojnacki
    in album: Ballada portowa
      type: MusicAlbum
      date published: 2015-06-10
    genre: sea shanties
    isrc code: GBSMU2158145
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:52:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x55bcea54c4d754a84814c1e16d0da4c2b0ebf114d8147906b06bd12283825458
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959128
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959128
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2158145
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T12:33:25Z
    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 0x55bcea54c4d754a84814c1e16d0da4c2b0ebf114d8147906b06bd12283825458. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBSMU2158145.
      date published: 2026-07-22T12:33:25Z
    audio: Ballada portowa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.649
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.689
      additional property: Energy
        type: PropertyValue
        value: 0.325
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.786
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.563
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.088
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Szkunery - Nagrania domowe
  type: MusicAlbum
  date published: 2015-10-12
  track: Szkunery
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161516
    explicit: false
    by artist: Rafał Chojnacki
    in album: Szkunery - Nagrania domowe
      type: MusicAlbum
      date published: 2015-10-12
    genre: sea shanties
    isrc code: GBSMU2354925
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T14:21:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbc6fac194d4ba11e3e3d4a7d8007e713f3d207b37956d6c58d0f9b92e6ca8c5b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959145
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959145
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2354925
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T17:21:35Z
    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 0xbc6fac194d4ba11e3e3d4a7d8007e713f3d207b37956d6c58d0f9b92e6ca8c5b. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:21:35Z), 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/GBSMU2354925.
      date published: 2026-07-22T17:21:35Z
    audio: Szkunery
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.735
      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: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.326
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.895
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.202
      additional property: Liveness
        type: PropertyValue
        value: 0.144
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Krzyknij Hej!
album: Matty Grove
album: Duchy
album: Wigilijny wieczór (żeglarska pastorałka)
album: Źródełeczko

Valence (Positivity)
type: PropertyValue
value: 0.266

Loudness (dB)
type: PropertyValue
value: -8.623

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Krzyknij Hej!
type: MusicRecording
duration: PT1M56S
duration ms: 116350
explicit: false
by artist: Rafał Chojnacki
in album: Szkunery - Nagrania domowe
  type: MusicAlbum
  date published: 2015-10-12
genre: sea shanties
isrc code: GBSMU2354926
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T17:39:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5e5fa24ab6135cbb57a932d50841aa6c96138d42348d1b8743bc11fbe828e6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958765
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2354926
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:41:12Z
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 0xa5e5fa24ab6135cbb57a932d50841aa6c96138d42348d1b8743bc11fbe828e6f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:41:12Z), 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/GBSMU2354926.
  date published: 2026-07-19T20:41:12Z
audio: Krzyknij Hej!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.971
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.709
  additional property: Energy
    type: PropertyValue
    value: 0.354
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.865
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.418
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.003
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Matty Grove
type: MusicAlbum
date published: 2017-05-10

Duchy
type: MusicAlbum
date published: 2019-02-20

Wigilijny wieczór (żeglarska pastorałka)
type: MusicAlbum
date published: 2019-12-24

Źródełeczko
type: MusicAlbum
date published: 2024-12-20