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 0xf91aa84f3c65dd5f0ad7f1453e4d681e334a1f11d746178d7082e30e15d8dca9. 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/785ac660-4832-4b65-91db-0566ef44ef0c.json and https://artists.proofprofile.net/proofs/artist/785ac660-4832-4b65-91db-0566ef44ef0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hugs for My Family, High Fives for My Friends