Mei Lan (22 October 1894 – 8 August 1961), better known by his stage name Mei Lanfang, was a notable Chinese Peking opera artist in modern Chinese theater. Mei was known as the "Queen of Peking Opera"
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 0x674eecf24313c3e9803ec676709269eae48604c6815edfd17bf6c5515b84b9a8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d627813-630c-446f-b622-7f5c920c9501.json and https://artists.proofprofile.net/proofs/artist/8d627813-630c-446f-b622-7f5c920c9501.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classic Collection of Mei Lanfang: Vol. 8 (Mei Lanfang Chang Qiang Zhen Cang Ban Ba)
Classic Collection of Mei Lanfang: Vol. 14 (Mei Lanfang Chang Qiang Zhen Cang Ban Shi Si)
Beijing Opera: Regrets Of Life and Death