Hồ Quỳnh Hương (born 16 October 1980) is a Vietnamese singer.Singer Ho Quynh Huong meets music lovers at Phuong Nam Café 2009 She has appeared in Asia Song Festival 2008, Bước nhảy hoàn vũ (season 1),
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 0x406321cdd43b1bb358af8d6a938d64aa93df11f53dbbd08fd0e91e8bc167c98e. 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/932f0b0b-4f3b-4de0-829c-745627d97376.json and https://artists.proofprofile.net/proofs/artist/932f0b0b-4f3b-4de0-829c-745627d97376.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae52b83523fffb47575275b55f8287092eab1ee6ebd0c29f07868620fe75e30. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/VNA2C2200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917f4d9508f4fbca8547a34aef93d00cee744c9a217e4961c8e996d33720b1dc. 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/VNA0R2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b56967a8de73acf1e1985d7950b56aa1b706a688698f5b2814cd61193c4b4c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/VNA0R2400060.
Em Và Tôi (feat. Tuấn Hưng) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cc7b8000bdb9fff6d6fbb64daabb80a618273d7b194d02163d4236518d671e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/VNA0R2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1622b703f1d0e8848c36acf157901b9f1ce671f74e3601225ad952bad42ac8d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/VNA2C2200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34371629ff84f34ed7d989d3721d7b9a28dfa5b04b9140f4f20181d5340fb712. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:50:47Z), 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/VNA2C2200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf48f29e51b769cdccc2a20aa8cc374e057b6dd19da52436359b7d621b5fee3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/VNA0R2300347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488c08ce89e0635a1eaa841469d9be3432ee22fa6d8d52b305822b1028f207e5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/VNA0R2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb78ed90cc5df7430d76f1442fcaaf49749c4680faf96893f775fe32ee6569f. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/VNA0R2400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d9b01cdc083c646bf7fc3c3312b97a4d35014c39c6dab35463630f49f3be8. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/VNA2C2200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dac52a6c360be43f7a482e5c18fdb28e5ebb76bd546e0f0c2968953f3ed140d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/VNA2C2200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a38895e033a1d16c853fdd3e98c235f4a5eed1de91cc110a43dd52a81924a6b. 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/VNA2C2200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb7905672fd5b648c1e0d9ecce918aa1195f8610fa919a0e3111c5e45a39e66. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/VNA0R2400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6191ebe22b1c34e2d663ff928b31a21b86f15c613821e6c99a6075719fbe1e08. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/VNA0R2400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fba61f215e0e3a637d1eed0bc9f02b318bba7d01e6534b9ecd2188b2e0e21c0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:56:15Z), 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/VNA2C2200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c15a6c8b984c036b4d9206a46391eede100eb158dcfdf665659dc09d39d87e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/VNA2C2200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45acf1f34595f9a41463ad38b10349b06f83b07c5b696a312425ff894dccb8a6. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:54:55Z), 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/VNA2C2200144.
Chay Di Roi Tinh - Lost In Saigon (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d4562d00c0eec325b7e073d4b59a14d60999afc995a80af43fc6fb18e780eb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/VNA2C2200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c429b8230f85a7b48405504d8a4e5a96b259ec6d8da5eba99338d7f6690979. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:17:14Z), 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/VNA0M1804338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d3d867f4d540b6acd343dbbebca04d882e56d6da7cebd821a52383c6f370d6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:03:31Z), 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/VNA0M1805215.