David Roman
type: MusicGroup
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc082bb81707461b5316b3104b65ef41e80b98cd6fc3c04c36093154a10d56ffa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954046
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954046
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41124395-eb9c-47b3-8da8-26ef6dba8af5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41124395-eb9c-47b3-8da8-26ef6dba8af5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41124395-eb9c-47b3-8da8-26ef6dba8af5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:53:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc082bb81707461b5316b3104b65ef41e80b98cd6fc3c04c36093154a10d56ffa","name":"David Roman","registered_at":"2026-06-16T12:15:34Z","symbol":"NIM1048991","token_address":"0x4a2f064971b7007a743a2863b217f30fc4be7086","type":"artist","uuid":"41124395-eb9c-47b3-8da8-26ef6dba8af5"}
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 0xc082bb81707461b5316b3104b65ef41e80b98cd6fc3c04c36093154a10d56ffa. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41124395-eb9c-47b3-8da8-26ef6dba8af5.json and https://artists.proofprofile.net/proofs/artist/41124395-eb9c-47b3-8da8-26ef6dba8af5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:53:03Z
  text: {"copyright_id":"0xc082bb81707461b5316b3104b65ef41e80b98cd6fc3c04c36093154a10d56ffa","name":"David Roman","registered_at":"2026-06-16T12:15:34Z","symbol":"NIM1048991","token_address":"0x4a2f064971b7007a743a2863b217f30fc4be7086","type":"artist","uuid":"41124395-eb9c-47b3-8da8-26ef6dba8af5"}
album: PICAZZO
  type: MusicAlbum
  date published: 2025-06-30
  track: PICAZZO
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173843
    explicit: false
    by artist: David Roman
    in album: PICAZZO
      type: MusicAlbum
      date published: 2025-06-30
    isrc code: QZTAX2514752
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T01:30:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5886cd66c0620861b61543ebf6d93f1c2328dbefb449dd3cd73146da25cb3787
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958349
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958349
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2514752
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:32:13Z
    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 0x5886cd66c0620861b61543ebf6d93f1c2328dbefb449dd3cd73146da25cb3787. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:32:13Z), 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/QZTAX2514752.
      date published: 2026-07-17T04:32:13Z
    audio: PICAZZO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.019
      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: 0.856
      additional property: Energy
        type: PropertyValue
        value: 0.689
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.052
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.512
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.422
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor