thumb|A T-maze, with food at the end of one arm and an empty bowl at the other In behavioral science, a T-maze (or the variant Y-maze) is a simple forked passage used in animal cognition experiments.O
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 0xc8e86d17c323c0e6a8933e6d1824d04e3effac88ed5d359c4229f71362fa4dcb. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5c37e3f-fa33-4779-9760-59ff7491ea27.json and https://artists.proofprofile.net/proofs/artist/f5c37e3f-fa33-4779-9760-59ff7491ea27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).