thumb|A custard cream and a bourbon biscuit; types of sweet sandwich biscuits A biscuit is a flour-based baked food item. Biscuits are typically hard, flat, and unleavened. They are usually sweet and
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 0xa7e4619bd1b54f3db066639432ca84788a9e6fd6e63d9febc5a2b58a7d3bf56e. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2eb0a3fd-7108-4258-8aef-6bdf753ad963.json and https://artists.proofprofile.net/proofs/artist/2eb0a3fd-7108-4258-8aef-6bdf753ad963.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20 Years, A Million Beers & A Lotta Nerve