thumb|upright|Statue of the devil in "the Devil Museum" in Kaunas, Lithuania|alt=A winged male humanoid devil holds a naked woman as she touches her breast. A devil is the mythical personification of
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 0x89fe21c58fda61a6fc101044da31df03502ac38e6058fa07dbc58bc149401c7e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75d91f5e-9bd6-4284-8518-f6c991395bd3.json and https://artists.proofprofile.net/proofs/artist/75d91f5e-9bd6-4284-8518-f6c991395bd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).