right|thumb|250px|The Creation of Light by Gustave Doré Darkness is the condition resulting from a lack of illumination, or an absence of visible light. Under low light conditions, human vision beco
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 0x7ae864c6b14bc190819f62e14cd0ff5c549b2e3564163c22bd6089d5a20d8cb2. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78eee45f-4f1d-454d-a5b5-8c811ca98dee.json and https://artists.proofprofile.net/proofs/artist/78eee45f-4f1d-454d-a5b5-8c811ca98dee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).