Frank Octavius Mancuso (May 23, 1918 – August 4, 2007) was an American professional baseball player and, served as a Houston City Council member for 30 years after his sports career had ended. He play
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 0x2252f3a7fefc6d4afa53ad031cbb158aaf0269912fe0a4f64f615d72c540f98d. 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/8195a579-0062-4fe2-bd00-8b921fc43e51.json and https://artists.proofprofile.net/proofs/artist/8195a579-0062-4fe2-bd00-8b921fc43e51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).