Chui is a surname. Origins Chui is a spelling of the Cantonese pronunciation of two Chinese surnames, listed below by their Pinyin transcription (which reflects the Mandarin pronunciation): Cuī (),
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 0x6e58e1001a5b354188ef603f6a5da460c5dab48136149fecd139b8a3d8d3b3b0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c98e5e6-34bb-4916-9d58-706b6d85d0d6.json and https://artists.proofprofile.net/proofs/artist/6c98e5e6-34bb-4916-9d58-706b6d85d0d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).