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 0xcc301dfc6ad3b2f8c84e5ba7c669f6f11cc91abad2cacf235e942a40b41dd2e5. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c0f5f5d-5fd7-4d02-b5d8-10336437d172.json and https://artists.proofprofile.net/proofs/artist/8c0f5f5d-5fd7-4d02-b5d8-10336437d172.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Makasete JC Onmyoji Yakumo Chan (feat. Catherine)