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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83a1cd838e924a3a45c2d1bd0dcc53fc63a5d58632d7ec33de5875469dc8b54. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9254d218-a5ab-4852-8a1b-a7e7dac9c873.json and https://artists.proofprofile.net/proofs/artist/9254d218-a5ab-4852-8a1b-a7e7dac9c873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When All God's Children Get Together (What A Time)