Nguyễn Văn Phi Hùng (born 24 June 1977), is a Vietnamese singer and doctor. Biography and career Nguyễn Phi Hùng was guided by his parents to study dance from the age of 12. After finishing high sc
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f284af2247f8d2f82166bf052e10eef0f668f2ea983843a8236e05d1c52b93a. 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/9d6d9887-732a-4fc4-b8de-ad8ad4cd41a0.json and https://artists.proofprofile.net/proofs/artist/9d6d9887-732a-4fc4-b8de-ad8ad4cd41a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd704a67a20185bf4354762e4b58b6fc3a2ad88fc955a567000220b2b98123a14. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM4TX2464829.
Tuyển Tập Những Tình Khúc Nguyễn Phi Hùng
Lời Thì Thầm - Những Tình Khúc Nhạc Hoa Lời Việt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefbab33fcfe7b1e8255dc1fc3729a49dd6e8b890d4a41cc520accaf3317882d. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/VNR011042495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96158961af1fc062825799a0e7e3c56bd1f0abf8b827c1af2fef7484769bbf6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/VNR011042710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c97ff69a67bada64670a07b644b853e9e8ab690e1b0091b29692d499bf39f70. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/VNA0M1805595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad5df6b335e8ca80f32efd1b94d764f302a89683f8c931af88a578ea0703892. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/VNA0M1805641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fb11e71a3cea5c9590960262681aa29b93cf6ce525909f6ffc5fe72cfeadbd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/VNA0M1805645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91a0f57a90933ed3d5690ca22107fa76d048f1aff7d8f1ef17473fdd6388527. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/VNA0M1941496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda8cf25ae8f756c6ebb4c6cc0d869d428dee4e4b430e12ab75cfe6aacfbb635. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/VNA0M1809003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d22da1d2a7a4df75ac0ba04a2b24bc79b33fb7929a29834300755e1788927. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/VNA0M1808399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57404d2f4dfbf35e94073218f2a04064c1e5d00595da9196e9c9d9b73a0fe982. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/VNA0M1844997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb768300b05612e2769357d51e1364d7155ba9d79e4c54e42626865b5126d9c3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA72253509.
Vì Một Thế Giới Đẹp Tươi/Mãi Mãi Trong Tôi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daec57f96f5cd358cced6f287fb1a1ba7587a203ba7d40acff1ad31c4155864. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRX282113118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ab2a4c7ee87164ee51f6fc8507191e14d8e9a8da1e8d9c25d005006adaf26. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR10S2267427.