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 0xdfef8c4854091613bf2ea4100c19962a6cb5bc3686e4871723ae93684abc63b3. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3ef2258-a6d3-4575-aaf4-b5ab3b8eaa99.json and https://artists.proofprofile.net/proofs/artist/e3ef2258-a6d3-4575-aaf4-b5ab3b8eaa99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing But... Deep & Minimal Essentials, Vol. 05