Le Tuan Anh (born August 6, 1996), commonly known by his stage name Masew, is a Vietnamese male musician, record producer, DJ and streamer. He is widely known to the public through the song "Túy Âm"
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 0xa501339cbb28799b22096d29a690f2f8e2025d1103097753148629e73b974dbe. 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/f9e43d9e-c678-4db1-aa2b-ed2b6a4b3ca0.json and https://artists.proofprofile.net/proofs/artist/f9e43d9e-c678-4db1-aa2b-ed2b6a4b3ca0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).