McKoy is a surname. Notable people with the surname include: Millie and Christine McKoy (1851–1912), siamese twins, "The Two-headed Nightingale" David McKoy (born 1983), Canadian football player Grain
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 0x3aa9a30ecb72dd4f51c707c5dcf2e7313892a6e8750ff0f2aeadbc245ab8ea29. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d84e378-c872-415c-beb4-1afc940681a7.json and https://artists.proofprofile.net/proofs/artist/7d84e378-c872-415c-beb4-1afc940681a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).