thumb|Marco Balzano - 2019 Marco Balzano (born 1978) is an Italian writer.Einaudi He was born in Milan, where he now works as a teacher of literature in a high school. Balzano has written several acc
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 0xeb9b751f3b49858efceebfe1cd557bc7b79ee4a8429ecb97c0ff901f3ed28c51. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71ab2d9c-712c-4f94-924c-6c12d91bb891.json and https://artists.proofprofile.net/proofs/artist/71ab2d9c-712c-4f94-924c-6c12d91bb891.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).