thumb|upright|175px|A railroad brakeman's signal lantern, fueled by kerosene. A lantern is a source of lighting, often portable. It typically features a protective enclosure for the light sourcehisto
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 0x4d58df624b69d27dfb4fc676975ba7f33e074412f7dee44864b8da42452056ec. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad78460d-3419-454d-9a0c-35bc9bcffcbc.json and https://artists.proofprofile.net/proofs/artist/ad78460d-3419-454d-9a0c-35bc9bcffcbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It's Amazing What You'll Agree to When You're On Fire!