Sergio Domínguez Muñoz (born 12 April 1986) is a Spanish former cyclist. He rode in the 2009 Vuelta a España, but failed to finish. References Category:1986 births Category:Living people Category:Sp
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 0x9bbd8dbbf43a94622868de736383b9238cc4722360086d15604858ff048dfc1e. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c85ce2ff-6935-4d73-8fa3-09cd0c60a9e4.json and https://artists.proofprofile.net/proofs/artist/c85ce2ff-6935-4d73-8fa3-09cd0c60a9e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).