1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa8ded1bef785437f6698b2417547c5c00212108107b63a512b5d729176c5db06. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2d4b64e-9744-41cc-83bf-4561f1c60322.json and https://artists.proofprofile.net/proofs/artist/e2d4b64e-9744-41cc-83bf-4561f1c60322.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LCP 3.5 (J Rawls presents The Liquid Crystal Project)