UES may refer to: C.D. Universidad de El Salvador, a professional football team representing the University of El Salvador Estadio Universitario UES, a multi-use stadium in San Salvador, El Salvado
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c37ee401811da7c4f745fbcafa77717a9c5c93f2146cb7eb9abfe7a6191189. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69195b13-d84c-4505-a461-33a25252d31d.json and https://artists.proofprofile.net/proofs/artist/69195b13-d84c-4505-a461-33a25252d31d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).