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 0xdce6f8e399286334205d84d5aa96f76fd9e666de45056fe1b2bc1d4c3e05f816. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efc1a6c2-b9f2-4dd0-90a0-1f7e272fc130.json and https://artists.proofprofile.net/proofs/artist/efc1a6c2-b9f2-4dd0-90a0-1f7e272fc130.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ハニーシャープとソルティフラット