thumb|250px|alt=Collage of images of downtown Kenema|Downtown Kenema Kenema is a city in Sierra Leone. The 2021 national census lists a population of 255,110 making it the second most populous city in
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 0x768acace477585f376d7c0194691d15ec146c6ffd750fede9419787d1ffce2e6. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed7f82f4-14b9-4c05-81fd-426affaf3587.json and https://artists.proofprofile.net/proofs/artist/ed7f82f4-14b9-4c05-81fd-426affaf3587.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).