Yuen is a Cantonese Chinese surname, which can refer to: 袁, 阮, 元, 源, 原 and 苑 Yuan (surname), the Pinyin transliteration of the Han Chinese surnames 袁, 元, 源, 原 and 苑 Ruan (surname), the Pinyin transl
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 0x91905eac96d9beda8b48501c7df895ce7e326717b9d56e4d5f517121d925d651. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3fee7e5-f95b-4bf1-8da9-51131228fed8.json and https://artists.proofprofile.net/proofs/artist/e3fee7e5-f95b-4bf1-8da9-51131228fed8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).