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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846962c4786b016fc0ca1abe587a2bc472c90068e88550c6ef1e977dad172896. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b492fb00-565a-43d3-b7d7-fd5d69a5c869.json and https://artists.proofprofile.net/proofs/artist/b492fb00-565a-43d3-b7d7-fd5d69a5c869.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chi nasce e chi more: U timpe è fatte pe l'ammore (feat. Giuseppe Totaro)