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 0x9411b7e4f37ad7854af46e2c0066be72ffba1be95b09c17516cfc60ed397622b. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/146ef00b-fa6c-4a47-8ce4-ac309dc12fc8.json and https://artists.proofprofile.net/proofs/artist/146ef00b-fa6c-4a47-8ce4-ac309dc12fc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Another Sunrise in the City of Green Decay