Gianni Matragrano
type: MusicGroup
popularity: 12
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf255e236b626896e41a4a1b6af610640424ca85363255ce125a99ac1e8f932f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bbe08fa-edf2-437f-82d7-d34adf4d4432.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bbe08fa-edf2-437f-82d7-d34adf4d4432.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8bbe08fa-edf2-437f-82d7-d34adf4d4432
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf255e236b626896e41a4a1b6af610640424ca85363255ce125a99ac1e8f932f","name":"Gianni Matragrano","registered_at":"2026-06-14T19:06:43Z","symbol":"NIM0548018","token_address":"0x720f9e7d9f340ff2be40160e72e050c11e8c9e71","type":"artist","uuid":"8bbe08fa-edf2-437f-82d7-d34adf4d4432"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf255e236b626896e41a4a1b6af610640424ca85363255ce125a99ac1e8f932f. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8bbe08fa-edf2-437f-82d7-d34adf4d4432.json and https://artists.proofprofile.net/proofs/artist/8bbe08fa-edf2-437f-82d7-d34adf4d4432.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xcf255e236b626896e41a4a1b6af610640424ca85363255ce125a99ac1e8f932f","name":"Gianni Matragrano","registered_at":"2026-06-14T19:06:43Z","symbol":"NIM0548018","token_address":"0x720f9e7d9f340ff2be40160e72e050c11e8c9e71","type":"artist","uuid":"8bbe08fa-edf2-437f-82d7-d34adf4d4432"}