alt=Iglesia de Santa Comba|thumb|Igrexa de Santa Comba Carnota is a municipality in the province of A Coruña, in the autonomous community of Galicia, northwestern Spain. It belongs to the comarca of M
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 0xc12a484fcd1b1b6bfcbf9c82c398300b2e4b4f87bb1542c856c0cf71df4fe330. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d10dddca-9610-4d89-a637-d27a423594c5.json and https://artists.proofprofile.net/proofs/artist/d10dddca-9610-4d89-a637-d27a423594c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).