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 0x5e70c0f794306f6e69f2b6bc7f850badc2041daf2e09b212b9a0b9464592c513. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6def8b79-553e-45df-9938-4f39dc230bb0.json and https://artists.proofprofile.net/proofs/artist/6def8b79-553e-45df-9938-4f39dc230bb0.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 0x1d99fe484ec291a47b314bfa7b3a1dfba6cfa6cad6f1cbda61aa8004b88ad7d2. 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/VNA0M1844729.
Người Về Trong Kỉ Niệm (feat. Justin TechN9)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26b47300ae07ff3cddb894cee07f67ee7361a8d71befe76ff69b3bd8b90f95f. 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/VNA0M1804481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2333a2def9842792538e9ae994322cb789c1ec9aabe1a5566817de2a71d1c38. 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/VNA0M1905392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409e50408028be91290ffb90d7a878e75d781d217841b3db010cac460c23ba2c. 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/QMFME2228953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc670133b585944d51759fa64c46c8256affbb107b5cce1d1042236c9eb4439f7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMFME2245159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24943d2aaba665938f15991c8b3f8070e14df10b6c027a1039de74d66b055e8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFME2236723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdff56fd23bb6589d21b32e312121ac27f12d9945fd1ccfa54c0c6686cd1fba. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZN882119202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11481700b3ea48489b9f95e6c6f5ecbf9317683308137e346d4a8d47ecd142d3. 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/QZN882119206.
Mình Có Tồn Tại Tình Yêu (Remix by HuyD)
Mình Có Tồn Tại Tình Yêu (Remix by Tee.D)
Mình Có Tộn Tại Tình Yêu (Remix by Dinh Long)
Mình Có Tồn Tại Tình Yêu (Remix by Konis Wiliam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37bbeb04caef5556a8f28c6691302ebd1c0974284423eb0d235f2f60a1b0701. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:29:35Z), 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/QMDA62311051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f242eeec3dbfcc11bc50d5be167e4bfb039f9e683768640d96bc3003762d29. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T22:58:49Z), 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/QMFME2350483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be593ed9c077356dfeb8fb316b47076b4dbda5d45adc36764b428811f838149. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/VNA0R2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce06211b3e453a80ce517b09ccf52bce12ea41bacaf1cf7a896dbe08059099e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:19Z), 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/VNA0R2400011.
Trái Tim Giữa Bầu Trời (Phiên Bản 10 Chú Bộ Đội)
Trái Tim Giữa Bầu Trời (Hành Quân Version Solo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a06c0ae67c9968bf557534137318abba7f3c7b01b053e1afb1027120a7a002. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VNA0M1844714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7722cb5b6f2efe44941502636626ee05d01de1eb9b98ede1e5f5678b4fa42093. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:26Z), 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/VNA0M1905390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3317346967e8e0188b0a7ee3da64a0820798b383ba0e74ecd2a6e4208a0560. 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/DGA052005391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eafa6130a76dd62e952fe4fe5c9683071ab462e19cfc92c287081e1c0be6406. 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/DGA052058124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953368d8a9816a1a6faa5af9063adc534c022fccf6c28da3ce99672081721385. 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/DGA052058125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1f26ba727fc12124a9e307d519b13cf6220fbb9d419cfbff1305947c68e792. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:08:35Z), 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/DGA052058131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016843bb2cf8fda2c9ffe1bb054808d406b26e821a599fe7d1657d9882cdb74f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA052058133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed66f6e18529d94edaa8c6c8e5e11d0ad0bcf7c81c3ba61af7be880cfcdf400. 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/DGA052058128.
Thế Giới Áo Tình Yêu Thật TikTok Version
Cánh Đồng Nỗi Nhớ (feat. Nguyễn Minh Cường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d4f889232c88ebbad78d5d109caa116eddf2cd843fa109e4645150af769c87. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/VNA0M1941251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d4f889232c88ebbad78d5d109caa116eddf2cd843fa109e4645150af769c87. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:15:53Z), 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/VNA0M1941251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138fc34df9a0cf1297ffef10cb2e73ce486fb35038ebf1fd8125e8cd93313ec3. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:52:08Z), 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/VNA0R2502869.
Nỗi Đau Mình Anh (feat. Trịnh Đình Quang)
Tuyển Tập Bài Hát Hit Của Châu Khải Phong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc35c57ba297c41b269a80dac766b14182b66bcd075f77f8053560d15ba702c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/VNA0M1901072.
Nỗi Đau Mình Anh (feat. Trịnh Đình Quang) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8f78261664348c2e36797d84d73850e4ca5991e3d8517999692cc37d116a6e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/VNA0M1901073.
Noi Dau Minh Anh (feat. Trinh Dinh Quang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e36687ea72f16bac46f7925172fe059d358b036ae0d1027202091bc9fff978. 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/USLZJ1808190.
Noi Dau Minh Anh (feat. Trinh Dinh Quang) - Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70cac7fe3648ff7bd9644fa4cfd3c71cf521fcfcae0fec9fa18c05711011835. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USLZJ1808191.
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