LES or Les may refer to: People Les (given name) Les (surname) L.E.S. (producer), hip hop producer Space flight Launch Entry Suit, worn by Space Shuttle crews Launch escape system, for spac
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 0x577b06f25c4bf70df11010aa60c3f02d6fe0d6d13982615ad432daaade9cbb86. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd28a2c9-cd19-43c0-a287-657a8ef356ea.json and https://artists.proofprofile.net/proofs/artist/fd28a2c9-cd19-43c0-a287-657a8ef356ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).