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 0xcf84930bd8891c946c71c710c8d6af3ac7659ba7ebc73d8bb8574996af4b0986. 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/a3ee3f46-f62d-456a-9262-87e4e628aa02.json and https://artists.proofprofile.net/proofs/artist/a3ee3f46-f62d-456a-9262-87e4e628aa02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vô Cùng (Vì Anh Thương Em) (Acoustic Version)
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 0x5c85c42114d496434dd0f101b825de4864f3759bf8b6b7b32fa00e841c15a906. 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/VNA0M1907798.
Mashup Vì Sao Trong Lòng Tôi – Những Lời Dối Gian (Live Version)
Đừng Mong Anh Sẽ Chúc Em Hạnh Phúc (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe4630804cc6aeb1db822018d85eb651c6124bd7690478dd79e477699d78c16. 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/VNA0M1925354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770585786642720a4d97f6f17f56ceb6b2066fbbf79c7a053e2766bf6683e0d. 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/VNA0M1925526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6ad07c94f9172813dda2289e984d6f0c85dde9c576918b2945fe9abc6336aa. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/VNA0M1925719.
Nếu Lúc Trước Em Đừng Tới (Live Version)
Nếu Lúc Trước Em Đừng Tới - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2abc0507c505cf48b1e67373ee4c12014792324cecfbc9ea88d1acd3870187. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QM7282392548.
Không Gì Có Thể Thay Thế Em (Live Version)
Không Có Gì Có Thể Thay Thế Em (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87348ecddc7229e25b0e82b989b55f08e33fd6a158e9e05b0229205639e9ea98. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMFME2237639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b8733cc315750da9286cfb796fe24e73431be62b1e463424073f10b76708e0. 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/QMFME2257281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fba821ff7473d23870a75bd6b1d67788e63f787eeb646cac5e437bd06e9a39. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QMFME2298355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2086cb63b25ea3f421c81f0ff89f25a92d288b38ee9d519be77dca488828c4. 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/VNA2E2310508.
Gala Nhạc Việt Studio Session Tập 11: Khải Đăng
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe592c9ceb9d3a38d7c95259c6ec6ce2a9474b60263ea383746c753d19ca48f81. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX282319355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b67fc79794f290c3ea6d77417fdf0c27b46b37eb301791bd882388ef43298. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMDA62327667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bb56c2d9c5705a23d45bed5527a38021dc28482e5987dde74c3df9c886a806. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA62389497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcfda4c791ca16d8ed77b0df6a5bcedef2d6dba7061c3e5037e0fff9df0eaea. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMFME2361116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949b3f511d3edd4712a978d3e624174cc9c6921110931b292c6c10af9956d1a3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAHW2428440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18b204e8c49dd6d2a0741cbf50512f682c62599d0cd1967c88ad495f7daecf8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/TCAIE2402243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf649fbff53c0f50b5ea11e1b7f7bbc11467c36c2b6e9bc12ef77c2168323e837. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCAIM2453624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadb443a483927e1708d44e64e0cb8d97b4138bdd6b25e74684f0650ad0586eb. 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/TCAIM2467861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b0b95bd78b90b78b9d33e8311a55d0bd1b6e4612d9914070ae092ab813f158. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/TCAIQ2462215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80111ac0d9a086bfb0b228fa9b16be9332dd35e058f0028a6d00d418d731e19. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAJD2424019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b986f912099de21203ec651865c3c1b370abd32ab4a9ae0152db4978c46eea. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM4TX2511907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b986f912099de21203ec651865c3c1b370abd32ab4a9ae0152db4978c46eea. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM4TX2511907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c57469ab5fc722721e1637adbc3a12c7af70f22568524df30976ae89570c105. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QM48F1961002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1dcf7edee9a5a514530c487d0d3acd5d5249214b617b497242ec988942bb4. 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/QM48F1758408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f3100cfb65cb32c3cf06c110bc9e2fef542af9ae8a58524df18c1551633b12. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM48F1961901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbe5d1b24f06ca8964f08ff955cc2b2d8fef348e4bbe7fa33ce0c6ef121acd6. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QM48F1960607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02094bc5d386d79a70c423b584df6b6bf75bf6bb73031954d3f496a0923acb0f. 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/QM48F1859801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9596e4f303a859d9920abf57c351a529c96f8349a6356dd7c5c3b1af0e051e. 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/QM48F1659605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e5cd8f9ed03e81ff74daf6455780363e511593c307a4c663f03468e779341c. 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/QM48F1962109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6bb08d96be74831e879d4b8741965e7c0bd02d21d7e3600bc00f09392a2ee. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QM48F1659002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdbc7be018d1005ae9e8f0485e949d8c619572fdf20ce8267e4444cc37de567. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QM48F1758704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd958cdba03f52343316139d17707904a0fb99facde566bc62be87464110e123. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/VNA0M1912062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28b64f2c2089fe118e0cc2d21264414ae02f350955d575bc830e72ddb6af07. 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/FR10S2267425.