Zbigniew Kaczmarczyk
type: MusicGroup
popularity: 19
followers: 263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd5ba3bda63cc31f5a51480d26e4c105a9fdaa28da634d604939dd5cf02fa49a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd5ba3bda63cc31f5a51480d26e4c105a9fdaa28da634d604939dd5cf02fa49a","name":"Zbigniew Kaczmarczyk","registered_at":"2026-06-15T04:18:04Z","symbol":"NIM0679623","token_address":"0x975e8cb48e73b66efdaaa9bb4f4f1b1490aabb70","type":"artist","uuid":"e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f"}
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 0xbd5ba3bda63cc31f5a51480d26e4c105a9fdaa28da634d604939dd5cf02fa49a. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f.json and https://artists.proofprofile.net/proofs/artist/e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0xbd5ba3bda63cc31f5a51480d26e4c105a9fdaa28da634d604939dd5cf02fa49a","name":"Zbigniew Kaczmarczyk","registered_at":"2026-06-15T04:18:04Z","symbol":"NIM0679623","token_address":"0x975e8cb48e73b66efdaaa9bb4f4f1b1490aabb70","type":"artist","uuid":"e12d4ef1-04b8-48f8-8e6d-fe8e5f99aa4f"}
album: Chopin
  type: MusicAlbum
  date published: 2002-01-01
  track: Nocturne No.2 in E-Flat Major, Op.9
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259200
    explicit: false
    by artist: Zbigniew Kaczmarczyk
    in album: Chopin
      type: MusicAlbum
      date published: 2002-01-01
    isrc code: PLJ011300227
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:32:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b543e3d541957737b9e4207ef14555ff28be1686943345e48f7254df387add1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLJ011300227
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x0b543e3d541957737b9e4207ef14555ff28be1686943345e48f7254df387add1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLJ011300227.
      date published: 2026-07-05T18:48:28Z
    audio: Nocturne No.2 in E-Flat Major, Op.9
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.429
      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: 0.526
      additional property: Energy
        type: PropertyValue
        value: 0.029
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.901
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.045
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.481
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Meditation for Your Soul - Farewell to Motherland
  type: MusicAlbum
  date published: 2015-06-15
album: Meditation for Your Soul – Bizet's Carmen
  type: MusicAlbum
  date published: 2015-06-15
album: Meditation for Your Soul - Ave Maria
  type: MusicAlbum
  date published: 2015-06-15
album: Classical Lullabies for Children
  type: MusicAlbum
  date published: 2015-06-23
album: Klasyka Dla Dzieci Kolysanki
  type: MusicAlbum
  date published: 2015-06-23
album: Musica Classica per Bambini Ninna Nanna
  type: MusicAlbum
  date published: 2015-06-23
album: Meditation For Your Soul Film Music 2 Instrumental
  type: MusicAlbum
  date published: 2015-07-10
album: Meditation for Your Soul Film Music Instrumental
  type: MusicAlbum
  date published: 2015-07-10
album: Muzyka Klasyczna współczesnie, Vol. 1
  type: MusicAlbum
  date published: 2015-07-15