Carlos Lázaro Vallejo (born 13 November 1990) is a Spanish former footballer who played as a midfielder. Club career Although born in Medina del Campo, Lázaro grew up in Olmedo (also located in Valla
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 0xe5f60437cdbbe4abc50e33965625203b2a4a371866c4492362269912bada963b. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a1127f2-3424-44cf-8546-79abfcb4f5e3.json and https://artists.proofprofile.net/proofs/artist/7a1127f2-3424-44cf-8546-79abfcb4f5e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).