Lawrence Clayton (March 1, 1891 – December 4, 1949) was an American banker and corporate executive who served as a member of the Federal Reserve Board of Governors from 1947 until his death in 1949. C
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 0x338d1266e4c36728d3eb2281df8a39a773da4b50dfd54b63f6a8611b0d4ebafe. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df62a6a9-3eb2-44f0-bf8e-57ec815d8680.json and https://artists.proofprofile.net/proofs/artist/df62a6a9-3eb2-44f0-bf8e-57ec815d8680.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).