Robert Duvnjak
type: MusicGroup
popularity: 10
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4e926a14e56d763574d16712872375e7fffd92ff0addb9bfa66763c9fba6f14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a94f4356-9ff3-4295-ae2d-bf495b935601.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a94f4356-9ff3-4295-ae2d-bf495b935601.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a94f4356-9ff3-4295-ae2d-bf495b935601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb4e926a14e56d763574d16712872375e7fffd92ff0addb9bfa66763c9fba6f14","name":"Robert Duvnjak","registered_at":"2026-06-20T08:57:06Z","symbol":"NIM1571686","token_address":"0xc71dc4b33f78e8c9a68ed82cc06c6369b0920020","type":"artist","uuid":"a94f4356-9ff3-4295-ae2d-bf495b935601"}
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 0xb4e926a14e56d763574d16712872375e7fffd92ff0addb9bfa66763c9fba6f14. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a94f4356-9ff3-4295-ae2d-bf495b935601.json and https://artists.proofprofile.net/proofs/artist/a94f4356-9ff3-4295-ae2d-bf495b935601.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xb4e926a14e56d763574d16712872375e7fffd92ff0addb9bfa66763c9fba6f14","name":"Robert Duvnjak","registered_at":"2026-06-20T08:57:06Z","symbol":"NIM1571686","token_address":"0xc71dc4b33f78e8c9a68ed82cc06c6369b0920020","type":"artist","uuid":"a94f4356-9ff3-4295-ae2d-bf495b935601"}
album: Waterfall
  type: MusicAlbum
  date published: 2023-12-25
album: Air
  type: MusicAlbum
  date published: 2024-10-18
album: Speck of Dust
  type: MusicAlbum
  date published: 2024-10-18
album: Plastic
  type: MusicAlbum
  date published: 2024-10-26
album: Flash
  type: MusicAlbum
  date published: 2024-10-26
  track: Flash
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116571
    explicit: false
    by artist: Robert Duvnjak
    in album: Flash
      type: MusicAlbum
      date published: 2024-10-26
    isrc code: TCAIW2435898
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:39:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0002585cb263f5f59271da8b60d1254bb6f3629abb4504be54dcbb42a063b4de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIW2435898
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x0002585cb263f5f59271da8b60d1254bb6f3629abb4504be54dcbb42a063b4de. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAIW2435898.
      date published: 2026-07-06T06:56:49Z
    audio: Flash
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.09
      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: 0.777
      additional property: Energy
        type: PropertyValue
        value: 0.559
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.167
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.868
      additional property: Liveness
        type: PropertyValue
        value: 0.147
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.253
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.419
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major