Princess Phương Mai of Vietnam, Duchess of Addis Abeba (1 August 1937 – 16 January 2021) was a daughter of Emperor Bảo Đại of Vietnam and his first wife, Empress Nam Phương. In 1947, Nam Phương left V
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 0x6601919ce02f05f0aa56d4b249f1710c5e1afa3290e9db840584fdaee57b3f3b. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1e8a8bc-12f6-49ef-ac4f-6bf308af1ce9.json and https://artists.proofprofile.net/proofs/artist/c1e8a8bc-12f6-49ef-ac4f-6bf308af1ce9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nếu Lúc Trước Em Đừng Tới (Remix Version)