Yunqi (, ; 5 January 1680 – 10 July 1732), born Yinqi and formally known as Prince Heng of the First Rank, was an imperial prince of the Manchu ruled Qing dynasty. He was the fifth son of the Kangxi E
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 0x8df03c3f1d742ec342d6e619dd002c634a10d5bad7fb469b41c1da245f69bfe7. 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/40df3c52-71fd-4558-91d2-884040f523a8.json and https://artists.proofprofile.net/proofs/artist/40df3c52-71fd-4558-91d2-884040f523a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).