200px|thumb|right|A1 motorway near Reps. Reps is a small town in the Lezhë County, northwestern Albania. At the 2015 local government reform it became part of the municipality Mirditë. It was the seat
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 0x0bb4ffd5fa3a1f1c6eab04261430eae5424c323c52102570f70ff3797f1d20ba. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/045b8044-4f57-4e53-889e-726c445048b3.json and https://artists.proofprofile.net/proofs/artist/045b8044-4f57-4e53-889e-726c445048b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).