thumb|St Edward's Crown (1661), used for the coronation of English monarchs and, from 1707, British monarchs, to the present day. A crown is a traditional form of head adornment, or hat, worn by monar
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 0x070742b78e8a247f9181a6410ee51fd070ad49bea71643c0b338175928a50854. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adf30519-72ca-4f44-95bb-22cd4bff306b.json and https://artists.proofprofile.net/proofs/artist/adf30519-72ca-4f44-95bb-22cd4bff306b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).