Đoàn Thanh Lam (born 19 June 1969) is a Vietnamese singer. She is one of the four divas of Vietnam. Biography Đoàn Thanh Lam was born in Hanoi to music composer Thuận Yến and traditional music artist
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 0xaf51b53afd14e26f3778b38be257479790568fe078d00f9b33866a8e53ff2315. 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/2f8708ff-5c5a-4706-8162-9ac5515a8713.json and https://artists.proofprofile.net/proofs/artist/2f8708ff-5c5a-4706-8162-9ac5515a8713.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thanh Lâm Với Những Tình Khúc Saxo Tuyệt Vời
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 0x20424ee07750faf3ea964d96b9107e16a83777d3728d3db7b1ea606cc1d366cc. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:30Z), 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/VNA0M1803877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880c6402068e2ed2e6dc2c3859f4251b21df965e5aa8b3e9c2edfe8b6342bb7f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/VNA0M1803878.
Ru Đời Đi Nhé - Tình Khúc Trịnh Công Sơn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a77894780fae3cf69f40925aafbac226ae407e9506d4cb1ab11fd9e4757f00. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/VNR011054006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3c2c46e8af119aa3610549ffd1f6b843adf0d989be89ff4a6875478587c333. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR2X42584715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6eb4d626b376d91bd97ea24f6f0016febbc7b830c33157e8d2a631287a44e7. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR2X42584705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f37723bf1b3784d41108f76d4707680dce813f4e20477d909e486fd60a6ea60. 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/FR2X42584706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d7fdee373a9ee448b5165d96a504579d75599140245059de647ec4039802cc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR2X42584707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd828be0744c888fab8f0aff1629aa68db730f6a097ca44a47efd92e46c3c7aec. 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/FR2X42584708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb931257bd5bfcc44da5a2d01021d855357dc12fb1a31bc2b283244b48c90218. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:24Z), 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/FR2X42584709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eed331be4446b2f27f85bd32f50aa3c9cc70c6f3fd4bbb2859e469de242a50a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR2X42584710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90651acf23338045072e4f56be198b3a49a4b76c2602f22be9b43afed5ec667. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/FR2X42584711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e300ccc133a443cf436d8cab7e29e8c54da89a26aadf50e692266f73347322. 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/FR2X42584712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ee1a0baf31c20c63df010b286e27f9cf0358af9dc6bbc86ce894f11d95ab25. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR2X42584713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2405db7d7a847361a87d985bab520a361a0360f4d9927ac98b4fd1e333c08ef8. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR2X42584714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6189d46db27eb8e7142512c6925c9e8d563636f1ff50be591dc16f891fe40694. 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/US38Y2504854.
CHO EM MỘT NGÀY (feat. Thanh Lam & Orange)
BÀI HÁT CỦA CHÚNG TA (OUR SONG VIETNAM), TẬP 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b73549acd526ebfc7f00018e535a84b3d6c734381a35645c0401cc25c3cfb76. 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/US38Y2420513.
CÓ HẸN VỚI THANH XUÂN (feat. Thanh Lam, Thu Minh, Lương Bích Hữu & Mai Tiến Dũng)
BÀI HÁT CỦA CHÚNG TA (OUR SONG VIETNAM), TẬP 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24962f613fb258f9246b706d6159742568f1923bb69cc3710e6d507bdd01ddbb. 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/US38Y2423338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41652a823be055ecd95f239b5ad176d69f2eca8e8adcd5af268cd811c953e8d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US38Y2423339.
NƠI MÌNH DỪNG CHÂN (feat. Thanh Lam & Orange)
BÀI HÁT CỦA CHÚNG TA (OUR SONG VIETNAM), TẬP 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7549b485717f42576544ed007b455d155947f5ac40760470fc47caca48de08ae. 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/US38Y2428610.
ÔI QUÊ TÔI (feat. Thanh Lam & Mai Tiến Dũng)
BÀI HÁT CỦA CHÚNG TA (OUR SONG VIETNAM), TẬP 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f24fe1e254e83e39d186f2fd0cb020f2cc4e9c7173bb0994e656cda67b0099. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/US38Y2427586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d5b1f8042c5cccba9596bfb30fd12e67772391443721f824df5daa5bf43cb2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX202476968.
Tùng Dương 20 Năm Ca Hát (Live Concert 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb076bcc2564f3146f04240526757af8cd470973412fbcb7f788810eb0d913393. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR2X42359902.
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 0xf2e92043bd9281feb77b862e67f694fd6a143daedaf56057ad34b77d40e70de6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR2X42359903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c46a5c8c0e804160eda6eb60c5661c0573f3b8a5d1febb56404ce2aebbacfd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR2X42359904.
MASHUP TÌNH 2000 - CÓ KHÔNG GIỮ MẤT ĐỪNG TÌM (feat. Thanh Lam & Thu Minh)
BÀI HÁT CỦA CHÚNG TA (OUR SONG VIETNAM), TẬP 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e63a2ebd0f8c43431acd13c2f898fdd1224845cee1a8ef84567ca9436d4122. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/US38Y2429345.