Manuel Vega Tamayo (born 9 August 1975 in Niquero, Cuba) is a right-handed baseball pitcher who plays for Granma of the Cuban National Series. He was also part of the Cuban team at the 2004 Summer Oly
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 0x99fe365e461f7ec14d1bab18867e7a4a99aa502b50284d6df95a293ce7095ceb. 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/839c6349-18df-4ea2-af30-ef04680da820.json and https://artists.proofprofile.net/proofs/artist/839c6349-18df-4ea2-af30-ef04680da820.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).