Brett Barron (born September 22, 1959) was a member of the 1984 US Olympic judo team, from San Mateo. He would earn 5 gold in US National Championships and 5 bronze medals. He injured his shoulder 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 0x9490b784a6c03b17c2749b3c20c952e371b111e63f76f65ef225d334840373b2. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06276414-0273-47be-b410-f40210222f76.json and https://artists.proofprofile.net/proofs/artist/06276414-0273-47be-b410-f40210222f76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).