Roberto Mazza
type: MusicGroup
popularity: 6
followers: 65
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ac029f49a4eefec93a619aa1407b9211cf5afa080ac5f49f83305d5c51c8601
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4df904c2-5bf8-4104-89ca-f38991a1d1b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4df904c2-5bf8-4104-89ca-f38991a1d1b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4df904c2-5bf8-4104-89ca-f38991a1d1b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ac029f49a4eefec93a619aa1407b9211cf5afa080ac5f49f83305d5c51c8601","name":"Roberto Mazza","registered_at":"2026-06-16T16:49:07Z","symbol":"NIM1114251","token_address":"0xe517d85e2589486d39d30da08230c8717e487fc1","type":"artist","uuid":"4df904c2-5bf8-4104-89ca-f38991a1d1b2"}
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 0x5ac029f49a4eefec93a619aa1407b9211cf5afa080ac5f49f83305d5c51c8601. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4df904c2-5bf8-4104-89ca-f38991a1d1b2.json and https://artists.proofprofile.net/proofs/artist/4df904c2-5bf8-4104-89ca-f38991a1d1b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x5ac029f49a4eefec93a619aa1407b9211cf5afa080ac5f49f83305d5c51c8601","name":"Roberto Mazza","registered_at":"2026-06-16T16:49:07Z","symbol":"NIM1114251","token_address":"0xe517d85e2589486d39d30da08230c8717e487fc1","type":"artist","uuid":"4df904c2-5bf8-4104-89ca-f38991a1d1b2"}
album: D N A
  type: MusicAlbum
  date published: 2023-11-24
  track: D N A
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294915
    explicit: false
    by artist: Roberto Mazza
    in album: D N A
      type: MusicAlbum
      date published: 2023-11-24
    isrc code: SE7DX2300282
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:31:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x164e96f2542f2ba80a8f7c1831836f1002dd1426d0fe7779e18e844e0d728be5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE7DX2300282
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:29:19Z
    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 0x164e96f2542f2ba80a8f7c1831836f1002dd1426d0fe7779e18e844e0d728be5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:29:19Z), 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/SE7DX2300282.
      date published: 2026-07-17T03:29:19Z
    audio: D N A
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.979
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.294
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.678
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.893
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.156
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.55
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major