Deng Chen-chung (; born 29 July 1952), also known by his English name John Deng, is a Taiwanese lawyer. He is currently a minister without portfolio in charge of the Office of Trade Negotiations. He w
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 0xec9b5b867f61167e6d1487e16d355ef7a10c673f42a94d397834e6ea20b46877. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bb547c8-83b2-4cbc-a5a2-036a6eb8057c.json and https://artists.proofprofile.net/proofs/artist/0bb547c8-83b2-4cbc-a5a2-036a6eb8057c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).