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 0xfe60a8874b24c8fa5a84ea8d21e159da33a02424732832e745d8169cb1587988. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8672f49-65c3-4a38-82d1-3efcd6be8612.json and https://artists.proofprofile.net/proofs/artist/f8672f49-65c3-4a38-82d1-3efcd6be8612.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Happy Birthday to You (Dear Christopher)