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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb091cb7694dc1156af08823782b05cd83c8c367b72a4afb10118661746cb068. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/866f1331-734f-4b8d-9cfc-41d86c92c384.json and https://artists.proofprofile.net/proofs/artist/866f1331-734f-4b8d-9cfc-41d86c92c384.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Know You Shouldn't Mix 'Em (But I Will)
The Pump Caught in My Trouser Leg - Sixties Version