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 0x6a34c569daa5a06f9cd3fe1b30ece9c8255e92e360bc4031fc10293c7af8f0ed. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0513fee6-1baa-42a6-841b-75ae405c19b1.json and https://artists.proofprofile.net/proofs/artist/0513fee6-1baa-42a6-841b-75ae405c19b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Wouldn't Treat a Dog (The Way You Treated Me)