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 0x6e9e1eaf23dbbe654ca4a8f604f56164dd9fdb98da2436cc3bf7c0f5fe132be5. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a113371-1fa7-49d7-aeb5-4e30ef62146d.json and https://artists.proofprofile.net/proofs/artist/7a113371-1fa7-49d7-aeb5-4e30ef62146d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Лиговский проспектъ (Prod. by cremallier)