250px|thumb|A view of the castle. Acaya is a small village, a community, in the province of Lecce and region of Apulia, in southern Italy. Description The heart of the settlement is a good example of
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 0x2ed9128ec77e6acb0c6959ddad71eb7bc849f96d299a71719ef266016e55812f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/842bb0fc-51f4-4677-9777-8e8836f7f413.json and https://artists.proofprofile.net/proofs/artist/842bb0fc-51f4-4677-9777-8e8836f7f413.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).