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 0xec9dee7af6c88a44448f8f1e97832a2fdca06a2d641c046f89e67f62b8b4b46d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/474c8c44-061c-4331-90c3-0f4801873c2d.json and https://artists.proofprofile.net/proofs/artist/474c8c44-061c-4331-90c3-0f4801873c2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).