callum contursi
type: MusicGroup
popularity: 5
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d45c12e52ec64d103ca309515f56e0849ac1153762adfa05639fc6129236244
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d45c12e52ec64d103ca309515f56e0849ac1153762adfa05639fc6129236244","name":"callum contursi","registered_at":"2026-06-17T19:15:35Z","symbol":"NIM1492678","token_address":"0xf9eecc862630591af763aea021853f9a95320a4c","type":"artist","uuid":"9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6"}
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 0x3d45c12e52ec64d103ca309515f56e0849ac1153762adfa05639fc6129236244. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6.json and https://artists.proofprofile.net/proofs/artist/9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x3d45c12e52ec64d103ca309515f56e0849ac1153762adfa05639fc6129236244","name":"callum contursi","registered_at":"2026-06-17T19:15:35Z","symbol":"NIM1492678","token_address":"0xf9eecc862630591af763aea021853f9a95320a4c","type":"artist","uuid":"9a2ca5c5-3e46-4c6c-8016-884a3c3a53e6"}
album: studio sessions vol.1
  type: MusicAlbum
  date published: 2024-11-15
album: studio sessions vo.2
  type: MusicAlbum
  date published: 2024-11-29
album: studio sessions vol.3
  type: MusicAlbum
  date published: 2024-12-13
album: the blues
  type: MusicAlbum
  date published: 2025-01-17
  track: the blues
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198091
    explicit: false
    by artist: callum contursi
    in album: the blues
      type: MusicAlbum
      date published: 2025-01-17
    isrc code: QZFZ42554004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:34:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdef26070e0f20c0632fc8eda100e4f4fe4cea51e9982bc5aa1cde15de8a9111c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42554004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:14:36Z
    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 0xdef26070e0f20c0632fc8eda100e4f4fe4cea51e9982bc5aa1cde15de8a9111c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZFZ42554004.
      date published: 2026-07-15T17:14:36Z
    audio: the blues
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.8
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.357
      additional property: Energy
        type: PropertyValue
        value: 0.405
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.76
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.305
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.727
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.137
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: floral
  type: MusicAlbum
  date published: 2025-01-31
album: more blues
  type: MusicAlbum
  date published: 2025-02-23