The Bayon (, ; BAI-on) is a richly decorated Theravada Buddhist temple of the Khmer Empire located at Angkor in Cambodia. Built in the late 12th or early 13th century as the state temple of King Jay
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 0xb3e579a3d8c0d22752fbd3bd6a2b9e92c9a85f18e48dc828b2a047a1a5e52211. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca1efef3-2aa2-4be5-8eed-841178b03cb0.json and https://artists.proofprofile.net/proofs/artist/ca1efef3-2aa2-4be5-8eed-841178b03cb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).