Interpreti dello spettacolo "Bella Ciao"
{"copyright_id":"0x3f2b7f4cb9efbb67a4190ce5deec4d3013fb9b5f824fb21a9c741f0a72b6c0a2","name":"Interpreti dello spettacolo \"Bella Ciao\"","registered_at":"2026-06-12T13:03:14Z","symbol":"NIM0305911","token_address":"0xfb94efe55fe61901b03cf40f9d719086b81b0c63","type":"artist","uuid":"ed39a8a9-7068-4f2b-8c8d-685ebf22bbb0"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2b7f4cb9efbb67a4190ce5deec4d3013fb9b5f824fb21a9c741f0a72b6c0a2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed39a8a9-7068-4f2b-8c8d-685ebf22bbb0.json and https://artists.proofprofile.net/proofs/artist/ed39a8a9-7068-4f2b-8c8d-685ebf22bbb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).