Marcello Colasurdo
type: MusicGroup
genre: canzone napoletana
genre: traditional music
popularity: 6
followers: 1104
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb4de36ce5f3d022177a5d3977a26eecc9a015518445f0927cfbe97db7f65dd8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bad736e1-c3b2-4447-b749-32969f345e6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bad736e1-c3b2-4447-b749-32969f345e6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bad736e1-c3b2-4447-b749-32969f345e6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb4de36ce5f3d022177a5d3977a26eecc9a015518445f0927cfbe97db7f65dd8","name":"Marcello Colasurdo","registered_at":"2026-06-20T16:53:09Z","symbol":"NIM1659805","token_address":"0x9dea3d45144229106e2cc3b8038eae518380e194","type":"artist","uuid":"bad736e1-c3b2-4447-b749-32969f345e6f"}
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 0xeb4de36ce5f3d022177a5d3977a26eecc9a015518445f0927cfbe97db7f65dd8. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bad736e1-c3b2-4447-b749-32969f345e6f.json and https://artists.proofprofile.net/proofs/artist/bad736e1-c3b2-4447-b749-32969f345e6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xeb4de36ce5f3d022177a5d3977a26eecc9a015518445f0927cfbe97db7f65dd8","name":"Marcello Colasurdo","registered_at":"2026-06-20T16:53:09Z","symbol":"NIM1659805","token_address":"0x9dea3d45144229106e2cc3b8038eae518380e194","type":"artist","uuid":"bad736e1-c3b2-4447-b749-32969f345e6f"}
album: E manco 'o sole ce 'a sponta
  type: MusicAlbum
  date published: 1997
album: E manco 'o sole ce 'a sponta
  type: MusicAlbum
  date published: 1997-05-11
album: Tammurriate e canti popolari devozionali
  type: MusicAlbum
  date published: 2007
  track: Tammurriata a Muntevergine
    type: MusicRecording
    duration: PT15M38S
    duration ms: 938960
    explicit: false
    by artist: Marcello Colasurdo
    in album: Tammurriate e canti popolari devozionali
      type: MusicAlbum
      date published: 2007
    genre: canzone napoletana
    genre: traditional music
    isrc code: ITG010707590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T20:48:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f6130fd1e924f6e0995ac528705730ae6d4f01372f1bdb81ada1a67e1002182
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959058
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959058
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITG010707590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T23:49:24Z
    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 0x3f6130fd1e924f6e0995ac528705730ae6d4f01372f1bdb81ada1a67e1002182. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:49:24Z), 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/ITG010707590.
      date published: 2026-07-21T23:49:24Z
    audio: Tammurriata a Muntevergine
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.377
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.723
      additional property: Energy
        type: PropertyValue
        value: 0.903
      additional property: Speechiness
        type: PropertyValue
        value: 0.069
      additional property: Acousticness
        type: PropertyValue
        value: 0.347
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.307
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.721
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.063
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor