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 0xfac1545fb5c67c0d8e80834005e7e72d21f846eca1c5afb46a74461b4632f034. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56be23dc-5c76-4d15-a33a-fd41d1ffeeb9.json and https://artists.proofprofile.net/proofs/artist/56be23dc-5c76-4d15-a33a-fd41d1ffeeb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Petty (Not Sane) [feat. Mark Benton]