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 0x398585837bd5556c6372d1b5f72f0db9e4a84c6409726e5c3e9bc5aeded67e52. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc73305e-5e56-499d-98f8-82f6f1c886aa.json and https://artists.proofprofile.net/proofs/artist/dc73305e-5e56-499d-98f8-82f6f1c886aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).