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 0xa36a5080edf1dc98eca0cfab3d4f4ebbce4cc06d2a95eda5b0b8ff6c23ce847f. 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/87361c42-f1dd-4510-87b1-094a1dc1d4e3.json and https://artists.proofprofile.net/proofs/artist/87361c42-f1dd-4510-87b1-094a1dc1d4e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tình Ta Hai Ngã (DORI Remix) - Là Vì Em Đã Rời Xa Anh Đấy Remix
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 0xc2ae4d7c8f5806f2b7309ddb84814bc986b461b3bfa00f834f2cf88781885919. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZYHM2407124.
Umee (DORI Remix) - Thả Bầu Trời Xanh Ngát Hương Yêu Của Mình Remix
Umee (DORI Remix) - Suy Tư Vu Vơ Nghĩ Đến Em Tim Anh Thêm Rối Remix
Umee (DORI Remix) - Nếu Như Đây Là Mơ Anh Xin Đưa Tay Nắm Lấy Phút Giây Này Remix
Umee (DORI Remix) - Làn Gió Lung Lay Hương Tóc Bay Bay Remix
Sợ Đánh Mất Em (DORI Remix) - Lời Hứa Chỉ Là Lời Hứa Thôi Remix
Sợ Đánh Mất Em (DORI Remix) - Em Ơi Anh Sợ Một Ngày Mình Mất Nhau Remix
Sợ Đánh Mất Em (DORI Remix) - Anh Ơi Em Sợ Ngày Mình Mất Nhau Remix
Sợ Đánh Mất Em (DORI Remix) - Đến Đây Thôi Mình Dừng Lại Được Chưa Remix
Sợ Đánh Mất Em (DORI Remix) - Em Ơi Anh Sợ Một Ngày Mình Mất Nhau Remix v1
Sợ Đánh Mất Em (DORI Remix) - Anh Ơi Trên Đời Này Anh Sợ Cái Gì Nhất Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07109c8f215c50aea2ff17557377db75008244894f7b3ecb58c2ef421e1c64ff. 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/QZYHM2415659.
Ước Nguyện Đầu Xuân (DORI Remix) - Một Rừng Hoa Mai Nở Một Bầy Chim Én Đưa Tin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf255a8222deeafcac886dc37ceff6932bdb8f5f98bcb8c9a7aa58c3aa871bad4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZYHM2404111.
Xuân Đã Về Rồi Anh Ơi - Tết Này Có Nhau (DORI Remix)
Tết Này Có Nhau (DORI Remix) - Xắn Tay Đặt Bút Xin Thề Ba Năm Mẫu Giáo Chưa Hề Yêu Ai Remix
Tết Này Có Nhau (DORI Remix) - Xuân Đã Về Rồi Anh Ơi Remix
Tết Này Có Nhau (DORI Remix) - Tích Tịch Tình Tang Em Trải Chiếu Ra Sân Ngồi Đàn Remix
Tết Này Có Nhau (DORI Remix) - Ba Má Nói Năm Nay Em Phải Đưa Chàng Rể Về Cùng Remix
Tết Này Có Nhau (DORI Remix) - Anh Đi Theo Em Về Tết Nay Sát Đôi Vai Kề Remix
Tết Bình An (DORI Remix) - Tết Là Tết Sum Vầy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b9a8fd713192673e177e0d10ea677ad92c919f3a65aae841befff0c6d3879b. 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/QZYHM2400825.
Em Ngày Gặp Lại (DORI Remix) - Ngày Đôi Ta Yêu Nhau Ngỡ Rằng Bên Nhau Dài Lâu Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362327af91fe2c3b5d2c3613727c6001b2f3ad04394f0dfcbcd4c9ba96cd5dbe. 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/QZYHM2373993.
Tết Bình An (DORI Remix) - Tết Là Tết Đã Về Xuân Là Xuân Đã Về Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2953958e557939c653511a01d7fac6682af0c808f2244d6b6167475e579933ca. 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/QZYHM2372671.
Tết Bình An (DORI Remix) - Tết Là Tết Sum Vầy Cầu Sung Túc Mọi Nơi Cùng Đón Xuân Về Remix
Tết Bình An (DORI Remix) - Tết Là Tết Sum Vầy Cầu Sung Túc Mọi Nơi Cùng Đón Xuân Về
Tết Bình An (DORI Remix) - Một Năm Cũ Đã Qua Cùng Nhau Đón Năm Mới Bình An Muôn Nhà Remix
Tết Bình An (DORI Remix) - Hoa Đào Thắm Tươi Hoa Mai Đua Màu Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a264d8c14369d992d0242a5f5142ee5ad5fa007a85a4cde45273bf09dfd2ccc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZYHM2372675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535622144695302d6bd4b585b7295770d8d9f935f584842bc837a21d67e7ce14. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZYHM2372682.
Nắng Cũ (Lofi Ver.) - Thấy Người Cười Nói Bên Ai Xiết Chặt Vòng Tay Êm Ái
Nắng Cũ (Lofi Ver.) - Như Hai Nam Châm Cùng Cực Mình Chẳng Thể Sát Được Đến Gần Nhau
Nắng Cũ (Lofi Ver.) - Nguyện Làm Cơn Gió Heo Mây Về Nơi Cuối Trời
Nắng Cũ (DORI Remix) - Thấy Người Cười Nói Bên Ai Xiết Chặt Vòng Tay Êm Ái Remix
Nhường Hạnh Phúc Cho Anh (DORI Remix) - Có Lẽ Những Yêu Thương Đã Không Còn Trong Anh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576a14d723e6450f41640f409bd8650393408139874e0fdd5a8178e6afac392e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWBE2341114.
Nhường Hạnh Phúc Cho Anh (DORI Remix) - Em Không Thể Nào Nặng Thinh Vờ Như Không Thấy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cba9fdbf05610c3b1a9c283c81e0184e1f46ee13dfa0874fb97368ba43b8eb. 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/QZWBE2340909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0bfabeca4d09c144a8dd3061dcb2d6a538f1d4269e205658cc0c28edda8305. 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/QZWBE2335237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d6a5c5af7f69f6860ea02a78d42c0cbcf83c969d17e291ca8774d11191daf6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKK972239056.
Con Gái Là Bảo Bối (Lofi .Ver) Con Gái Của Tía Là Con Gái Rượu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe334967278f0368be9e99ec021f2738787d1e775c74a7ecb74707b175d22fc. 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/QZWBE2307270.
Tía Em Nói Con Gái Như Là Bảo Bối - Con Gái Là Bảo Bối - Remix
Tía Em Nói Con Gái Như Là Bảo Bối - Con Gái Là Bảo Bối (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebca73d8acbc820e1123ab2ee39ea5def8de9ae48dbfeb6c88544cd4f0e03537. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZWBE2261501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4a1a4930bbc5d5da7b78d37aa665b1a0af112aa826fdb9db1bfc414b7a9888. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWBE2260932.