250px|thumb|Pedestrians on a crosswalk in Buenos Aires right|thumb|A sign in Belo Horizonte, Brazil, directing pedestrians to an overpass for safe crossing. A pedestrian is a person traveling on foot
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 0x4865f2ba8eda786118c2ff7da52c99c558a0ef81dda7344938a5a365fd1208b9. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09ceecc8-d3f9-4426-bc08-f754cbab7992.json and https://artists.proofprofile.net/proofs/artist/09ceecc8-d3f9-4426-bc08-f754cbab7992.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).