thumb|left|Seaside Chapel in Florida, designed in 2001 Scott Merrill is an American architect. He is a principal at Merrill, Pastor & Colgan Architects. He was the recipient of the Driehaus Prize in
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xa8a02e9ecdd67f2c968dca10cfc26000ca89151813da43b25c31d2af0e1ce34b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/387a0b51-af97-4cfc-9548-c07f434ea6b7.json and https://artists.proofprofile.net/proofs/artist/387a0b51-af97-4cfc-9548-c07f434ea6b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).