The face is the front of the head in humans and many other animals that features most of the sense organs including the eyes, nose and mouth. Many animals may express emotions through their face. Sens
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 0xc79b3a0f3253ab02bebb41d7b1178550647640c7324c6af251db79fec40f2870. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b93fdc0b-2bd1-441c-b861-c960e19a872b.json and https://artists.proofprofile.net/proofs/artist/b93fdc0b-2bd1-441c-b861-c960e19a872b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).