José María Gutiérrez Hernández (born 31 October 1976), known as Guti, is a Spanish former professional footballer who played as an attacking midfielder. During his career, he played almost exclusivel
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 0xf48c8a7c359317eade857cf4694013d836d4bb321743e079d7c4748fc1814413. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/993090ee-86ef-4e10-a068-9cdde1aa3dcf.json and https://artists.proofprofile.net/proofs/artist/993090ee-86ef-4e10-a068-9cdde1aa3dcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).