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 0x9628a028ac80cd0dfd5a6143a20efbad685064cfd49e226e0af8113acf97e31f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf629eae972ba7097b4794cc55199042f97ce2a304798942bc4d32a09d4136d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:05:39Z), 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 956351 (2026-07-02T11:38:34Z), 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/VNA0F2113630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35499450b3dbe3ae75abe14d00abc8d3bf1932113318a2bf2892ae9722c1160. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA0F2113631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92559af02899c40e4273feca21feb9d5eba5ebf91dd6a240ee30602f7b24aa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0F2113634.
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.
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 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.
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 (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 957145 (2026-07-08T08:56:20Z), 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/VNA1M2404056.
Kiếp Sau Vẫn Muốn Lập Gia Đình Với Em (DUCK Remix) [Version 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827e7e79e87c607888ec2c124bf249787d87e03a56c9fc1558f485db6eacb8c5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0F2411433.
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 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)
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 957124 (2026-07-08T03:53:27Z), 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 0x677ba7fe5e3c7089b31b655146f731e8c40f91a77e936f80db3dd82fad5c4049. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM4TX2586048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17b0a9d2bb53444f5ba2b4b358d6d20628a3261bf1fb9bc43fd3c248e66542. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA0F2411085.
Chúng Ta Chỉ Là Đã Từng Yêu (FREXS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c7548a3373878272c9b7e66d5be55239be9acfeffe49190ac1fd221e206a42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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.
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.