Nguyễn Thanh Tùng (born 5 July 1994), known professionally as Sơn Tùng M-TP (), is a Vietnamese singer-songwriter and actor. Born and raised in Thái Bình, Thái Bình province (now is Hưng Yên province)
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 0x5a2679af9078162cb4fdaf7460b69fc3625d5630806c15b31e38f12ff422a4cb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/071b9e03-36d7-4a73-95ba-6ae319d59419.json and https://artists.proofprofile.net/proofs/artist/071b9e03-36d7-4a73-95ba-6ae319d59419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sky Tour (Original Motion Picture Soundtrack)
Remember Me (Onionn Remix Countdown 2021)
Có Chắc Yêu Là Đây (Onionn Remix countdown 2021)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564bde9fa5436130edfb3b0eec7cb03d148a69a15a84b4ba84909c80853cf2ec. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872263795.