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 0x9628a028ac80cd0dfd5a6143a20efbad685064cfd49e226e0af8113acf97e31f. 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/e9fc7c5a-7814-4d2f-bf02-4dd31b36f52c.json and https://artists.proofprofile.net/proofs/artist/e9fc7c5a-7814-4d2f-bf02-4dd31b36f52c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tuyển tập nhạc ZIN Media remix hot Tik Tok #2
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 0xcaf629eae972ba7097b4794cc55199042f97ce2a304798942bc4d32a09d4136d. 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/VNA0F2113629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b547ff692c1cc989665e8dc415d39cbb9d14b10925270c5aef2c2d076a44fba. 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/VNA0F2113630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35499450b3dbe3ae75abe14d00abc8d3bf1932113318a2bf2892ae9722c1160. 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/VNA0F2113631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618d6c0cdb73212c90ca9c56d5041a83e64cc75f1fe4a07b7e11c429c5397ed0. 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/VNA0F2113632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440ef50cf29051408aa752d07541f67e48840d9e16ea5170d53d627911db65df. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/VNA0F2113633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92559af02899c40e4273feca21feb9d5eba5ebf91dd6a240ee30602f7b24aa. 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/VNA0F2113634.
Không yêu anh cũng đừng tổn thương anh (Lofi remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78cfe3af3c868dc374e7e936815254af317f53dc48094c6156e7b272500ab9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/VNA0F2113635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43ba2c57b43abdb86e37d152243165c67ff6fc1c2cfb5435b3bdb55a441cac0. 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/CAQOI2417284.
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em DUCK (Lo- Fi)
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em (QV Remix)
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em - QV Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8598ee5df3c5a77ae428d41667bedaf5dff603afb539f6cc1fe315293ad67e1a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/VNA1M2404057.
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em (HM Remix)
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em - HM Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd350054b12e69d56a62a840eaa9eb0bd54eeadaa9d4c11ef77e5748ec1212cda. 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/VNA1M2404056.
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em (DUCK Remix) [Version 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6f62547297f1cac7d0089d1932588d8cba433dcec8c3b61de73291bb54b8ea. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/VNA0F2411432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827e7e79e87c607888ec2c124bf249787d87e03a56c9fc1558f485db6eacb8c5. 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/VNA0F2411433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1e3f23537dc68c906842a796cc6cd2a10e8fb47091c7e6376a6c34c76c4861. 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/VNA0F2411449.
Giờ Em Khóc Nước Mắt Ai Lau (DUCK Remix) [Version 3]
Giờ Em Khóc Nước Mắt Ai Lau (DUCK Remix) [Version 2]
Giờ Em Khóc Nước Mắt Ai Lau (DUCK Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cefea3b383122b24359ba45d6cf87c99b1af0c176313a08bb6471f3d48c25b9. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/VNA0F2411404.
Giờ Em Khóc Nước Mắt Ai Lau (QV Remix) [Version 4]
Giờ Em Khóc Nước Mắt Ai Lau (QV Remix) [Version 3]
Giờ Em Khóc Nước Mắt Ai Lau (QV Remix) [Version 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cada6027baaba1b26c3fccba717574daba245894dc1b1117474b66910db5b4. 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/VNA0F2411139.
Bước Vào Tim Tôi Hút Hồn Tôi (DUCK Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7070435b3b6fd47b61e84278c34bd5e9943bd6a9c7a93a638339fedee7ec9d7. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QM4TX2586550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ba7fe5e3c7089b31b655146f731e8c40f91a77e936f80db3dd82fad5c4049. 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/QM4TX2586048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6364c211abed9d5e4693b0f2da29518cc9bf075332e7f882a0886eb64b0d09f. 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/QM4TX2585948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17b0a9d2bb53444f5ba2b4b358d6d20628a3261bf1fb9bc43fd3c248e66542. 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/VNA0F2411085.
Có Em Là Điều Tuyệt Vời Nhất - Remix Vinahouse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb738d51fcdb1f3817654230e1b0fb60844c8e8a56c60b6c5bd1854629aa20f0. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/VNA2F2301809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e6a141ed8a578f67040c8502534fc5fa00c23ecd4c2ab75e912d0f4326dd0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/VNA0F2303230.
Chúng Ta Chỉ Là Đã Từng Yêu (FREXS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c7548a3373878272c9b7e66d5be55239be9acfeffe49190ac1fd221e206a42. 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/VNA0F2111005.