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 0xec479c3fd9bcd82910562530be708282995e144cc40f92e898ea869fc4575c13. 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/b415ea06-556b-40be-8c0d-56fbf791dee1.json and https://artists.proofprofile.net/proofs/artist/b415ea06-556b-40be-8c0d-56fbf791dee1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Can't Trust the Summer / Broken Bones