Hồ Mạnh Dũng (born 1962), better known as Don Hồ is a Vietnamese American singer who is known for appearing in Paris by Night. Early life Don Hồ, whose real name is Hồ Mạnh Dũng, was born on February
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 0xac6697b823e703cacd573c1701013d211d561aff7677ff58387772b041d93541. 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/abd5e338-0bc2-4c1b-b4ca-33246ba4072d.json and https://artists.proofprofile.net/proofs/artist/abd5e338-0bc2-4c1b-b4ca-33246ba4072d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Xin còn gọi tên nhau vol.4 - Don Hồ - Ngọc Lan
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 0xf33e8d02bd1da5fac9e95033fe1680ae213a53cde2eac111ee02322c1e41039f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/VNA0F1709448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4deaf4cc12dec751a0db75ed2d37eaff827b41717b193ed410b7cfb9d9614099. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/VNA0F1709453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825cadcfad20c42b813556fee34372d1a4c7008daae6a03a3e380ed75ce08e92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/VNA0F1709456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396636b3586b993b1c111d4044ed271b2904a6d00673176fcb5627ead0343c31. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TW2077066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feeaaab45c84c778c2523654c0a58d60166ce3f934576bff6a31261e77b2a4a. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QZGCD1801693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89b1eccd52680ca7b4d364b692443e4f667473796c34d2505655127a3168ff4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZGCD1801695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c52834e1d570925fefe59cbae124be65f3d2198f96cb20ff0b2afb6ec862a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZGCD1801696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798da93a990baeee192e22794699eca755b88585e06aa655cbfad0625d6bb195. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZGCD1801697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4c003d997d1e58988ba6ebd5a4100aebfd409f6d8b80b825f70ca47258cea7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZGCD1801699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbf8fcb376ffe3d6c7342a15bb439b2bca2e1538685144c405cedea2de30ce3. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZGCD1801700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05a545b51e239ce3ef3ee64ef9aebc5fcfa1c601229b662f4287b8884975c1e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM4TW2077212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7760f719338729cbeb6c73b8ce5781fbafc224b214fab7b34dbdf6b46c705f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0F1711908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e2e7a630129fee7d9e5b254707fdcaa7da1e68131acfa27cb0969420d394f9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/VNA0F1711909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb32d0d45774df8c207092177da678e539479b8a43552c8f37ef855fdf5eb79b. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/VNA0F1711910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44629c2ce0f271f71dc87fa1ecc051a21294beb05cc920f6fa60c0f80e41b066. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/VNA0F1711911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9561d591fcd54edc4abaedf56066d508a2cf6cbbc1398907f490c82c91a8b941. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/VNA0F1711912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52171d9676e40e442fbce11af9cee519380c8ce08516b27d279c5a13e886b81. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/VNA0F1711913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e72559cb3959b7c299cdcb07d771faa176c22f10bb3dfd0cf7699a2e1d27fde. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/VNA0F1711914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f792fcc776a6adb121b56cad77324bcb775ed014c2015221e8b18e435de76c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/VNA0F1711915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6905ddcbd6003a4cece57e35c673968a2dae3f7f1ccdbc20ed0b892363cc3506. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA0F1711916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafe251ee13a826e558d7caf91eff32d21b87df3ba45c32e4bffc6b1705c167c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/VNA0F1711917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b97b6fbb5d72940d319a0d75e2ce0a4ac7aa97a3e0b504ca744e20770caa03f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM48F2001402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a30fdb02632b45a76bf64175fe1b64eb46393a254485765c17c54e8498dc9e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZGCD1807620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf3869836be0a5304bca18086442393ec132cfd2114a191c351e37a90ed7d9a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZGCD1803330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb249ed59fbab1f89b0343c0e706523cbd43adf8d6cb5d6f95543d10cee9e7cc9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMBZ91913686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb469998016ef97ca704ae3e1b13ea8bcaaad4f573e20e41ef4253071f1ebeaba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM48F1555104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c61ae28c145ef139b37cfcd07dfb885ea1e63650cebc0e9cf23affea1075879. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMBZ91913819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a36f3ddf0648f1ae029bfdf827cd6e1a06c4e8bd6b51083a55e22c3afe5617. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZGCD1803459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6614721eb211e58289708d67c56fcbcd5d6ba77f531635cfed6799274e75091d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZGCD1803460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9f57116611579431f2c5ca1b96eb775a3f87695c01be6c06c17cd5b38ad4bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMBZ91914008.