Dariusz Duch
type: MusicGroup
popularity: 6
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb986642b5cc75f31ad282ba396bfb2473cf410a5fa6a8f425c67e90de1a953f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3166ab0-e52f-4b6b-85b2-8d9ffa762c91.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3166ab0-e52f-4b6b-85b2-8d9ffa762c91.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a3166ab0-e52f-4b6b-85b2-8d9ffa762c91
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb986642b5cc75f31ad282ba396bfb2473cf410a5fa6a8f425c67e90de1a953f","name":"Dariusz Duch","registered_at":"2026-06-20T06:26:32Z","symbol":"NIM1540463","token_address":"0xae92826a526926acd11486d188a4f0dd8230410f","type":"artist","uuid":"a3166ab0-e52f-4b6b-85b2-8d9ffa762c91"}
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 0xeb986642b5cc75f31ad282ba396bfb2473cf410a5fa6a8f425c67e90de1a953f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3166ab0-e52f-4b6b-85b2-8d9ffa762c91.json and https://artists.proofprofile.net/proofs/artist/a3166ab0-e52f-4b6b-85b2-8d9ffa762c91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xeb986642b5cc75f31ad282ba396bfb2473cf410a5fa6a8f425c67e90de1a953f","name":"Dariusz Duch","registered_at":"2026-06-20T06:26:32Z","symbol":"NIM1540463","token_address":"0xae92826a526926acd11486d188a4f0dd8230410f","type":"artist","uuid":"a3166ab0-e52f-4b6b-85b2-8d9ffa762c91"}
album: Hot16challenge2
  type: MusicAlbum
  date published: 2020-05-20
album: #DEMOn
  type: MusicAlbum
  date published: 2021-11-13
album: Pod wisielców drzewem
  type: MusicAlbum
  date published: 2022-10-07
  track: Pod wisielców drzewem
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228500
    explicit: true
    by artist: Dariusz Duch
    in album: Pod wisielców drzewem
      type: MusicAlbum
      date published: 2022-10-07
    isrc code: QZRP42246202
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:23:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x21e30d2e790906c01df2d212213083b7feebf5df7f48506bf71bdb851d6d5167
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957919
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957919
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42246202
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T23:58:45Z
    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 0x21e30d2e790906c01df2d212213083b7feebf5df7f48506bf71bdb851d6d5167. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP42246202.
      date published: 2026-07-13T23:58:45Z
    audio: Pod wisielców drzewem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 185.733
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.373
      additional property: Energy
        type: PropertyValue
        value: 0.586
      additional property: Speechiness
        type: PropertyValue
        value: 0.089
      additional property: Acousticness
        type: PropertyValue
        value: 0.572
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.16
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.55
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.173
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Grabarz
  type: MusicAlbum
  date published: 2022-11-03
album: Inna fikcja
  type: MusicAlbum
  date published: 2022-11-03
album: Kult
  type: MusicAlbum
  date published: 2022-11-03
album: Styl
  type: MusicAlbum
  date published: 2022-11-03
album: John Doe
  type: MusicAlbum
  date published: 2022-11-03
album: Daleko od Domu
  type: MusicAlbum
  date published: 2022-11-03
album: Czarne lustro
  type: MusicAlbum
  date published: 2022-11-08
album: Limbo
  type: MusicAlbum
  date published: 2023-05-04
album: Czarna fikcja
  type: MusicAlbum
  date published: 2023-05-04
album: Wielki mały książę
  type: MusicAlbum
  date published: 2023-05-04
album: Umarli głosu nie mają
  type: MusicAlbum
  date published: 2023-05-04
album: Znaczki na tabletkach
  type: MusicAlbum
  date published: 2023-06-07
album: Dark Hole
  type: MusicAlbum
  date published: 2023-06-11