Ludo Cana
type: MusicGroup
popularity: 4
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbfcfe96f7cc6ddfe388b18741eb63ac633c17e882bcaf9db412e4e29a1de39ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7c8476c-4f3e-4b63-bae6-52311279bf86.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7c8476c-4f3e-4b63-bae6-52311279bf86.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7c8476c-4f3e-4b63-bae6-52311279bf86
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbfcfe96f7cc6ddfe388b18741eb63ac633c17e882bcaf9db412e4e29a1de39ca","name":"Ludo Cana","registered_at":"2026-06-21T09:08:02Z","symbol":"NIM1884477","token_address":"0x703edaaa37a015f700b5fc37d3863e90285121b0","type":"artist","uuid":"e7c8476c-4f3e-4b63-bae6-52311279bf86"}
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 0xbfcfe96f7cc6ddfe388b18741eb63ac633c17e882bcaf9db412e4e29a1de39ca. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7c8476c-4f3e-4b63-bae6-52311279bf86.json and https://artists.proofprofile.net/proofs/artist/e7c8476c-4f3e-4b63-bae6-52311279bf86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xbfcfe96f7cc6ddfe388b18741eb63ac633c17e882bcaf9db412e4e29a1de39ca","name":"Ludo Cana","registered_at":"2026-06-21T09:08:02Z","symbol":"NIM1884477","token_address":"0x703edaaa37a015f700b5fc37d3863e90285121b0","type":"artist","uuid":"e7c8476c-4f3e-4b63-bae6-52311279bf86"}
album: Leroy Street
  type: MusicAlbum
  date published: 2021-02-17
album: Marble Madness
  type: MusicAlbum
  date published: 2021-07-07
album: C'mon My Friend
  type: MusicAlbum
  date published: 2021-07-12
  track: C'mon My Friend
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156757
    explicit: false
    by artist: Ludo Cana
    in album: C'mon My Friend
      type: MusicAlbum
      date published: 2021-07-12
    isrc code: QZAKB2129663
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:49:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x706bf447108c964a46bc151bdad58883e4ac9fe706f31b3bf52d1befff9e23b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2129663
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x706bf447108c964a46bc151bdad58883e4ac9fe706f31b3bf52d1befff9e23b8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZAKB2129663.
      date published: 2026-07-05T10:01:46Z
    audio: C'mon My Friend
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.198
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.719
      additional property: Energy
        type: PropertyValue
        value: 0.13
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.878
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.873
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.222
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.038
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Pony Regulator
  type: MusicAlbum
  date published: 2021-11-29