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 0xd2d284e6fd82d4bbd9035c3d1bf4ba3a54c98e2cc617a8f89706f94d8e2de7c5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b1579e3-d93e-48ac-8392-139a42ec9ca8.json and https://artists.proofprofile.net/proofs/artist/8b1579e3-d93e-48ac-8392-139a42ec9ca8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).