Luca Grassi
type: MusicGroup
genre: opera
popularity: 7
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf75d1b3032df1a24806e8f6796b37a6ff6f209f547927067b89bb3f9fafa4bd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7d4ddbc-6807-4f00-a4ee-336f9abf50e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7d4ddbc-6807-4f00-a4ee-336f9abf50e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7d4ddbc-6807-4f00-a4ee-336f9abf50e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf75d1b3032df1a24806e8f6796b37a6ff6f209f547927067b89bb3f9fafa4bd0","name":"Luca Grassi","registered_at":"2026-06-20T08:24:13Z","symbol":"NIM1564247","token_address":"0x67ea7266ecff507018e722da8c0cb1ac63c01f55","type":"artist","uuid":"a7d4ddbc-6807-4f00-a4ee-336f9abf50e4"}
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 0xf75d1b3032df1a24806e8f6796b37a6ff6f209f547927067b89bb3f9fafa4bd0. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7d4ddbc-6807-4f00-a4ee-336f9abf50e4.json and https://artists.proofprofile.net/proofs/artist/a7d4ddbc-6807-4f00-a4ee-336f9abf50e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xf75d1b3032df1a24806e8f6796b37a6ff6f209f547927067b89bb3f9fafa4bd0","name":"Luca Grassi","registered_at":"2026-06-20T08:24:13Z","symbol":"NIM1564247","token_address":"0x67ea7266ecff507018e722da8c0cb1ac63c01f55","type":"artist","uuid":"a7d4ddbc-6807-4f00-a4ee-336f9abf50e4"}