R. Thomas (March 13, 1961 – 1971) was an American Thoroughbred racehorse bred in Kentucky by Bull Hancock at his renowned Claiborne Farm. Sired by Nadir, the 1957 American Co-Champion Two-Year-Old Col
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 0x3977e3ebebc3d5b3ae0fb2a0b3828884c0b826d64ed0bcead4079d0ec4dde125. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44144ad5-774b-4187-839c-cf5c431cbaf1.json and https://artists.proofprofile.net/proofs/artist/44144ad5-774b-4187-839c-cf5c431cbaf1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).