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 0xf42f6ab671037e8b9193099e15ca422f7c9a083ab07e84d0ef8dac4929787796. 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/1c336454-d8da-4045-9a5c-b6d26f231b0e.json and https://artists.proofprofile.net/proofs/artist/1c336454-d8da-4045-9a5c-b6d26f231b0e.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 0x0c46392a1151c7d302867a38565ccc633c91818b71f8daea67ea581853ef2b07. 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/QM48F2104001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6aadac833a8e24f383f65244b1b8160e3fc633a745ab35678168b812443432. 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/QM48F2104002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a47fcdd0d2a909ef964e245b6ee728c5bea2f4b9733ed3028318861e3a3c07. 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/QM48F2104005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf55844b286fc417a89acb34ff654f8f104e0baed10856ac7d8b7b267cfd1b0c. 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/QM48F2104006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb37019f20177cbfe2a3b31c6f3918648eb54760bfd5e020ec6c6ddaf232e2ac. 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/QM48F2104007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14307c31a8000a1186d7077a9c89c85cec86ea0c97d956ff85a520b09758477. 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/QM48F2104008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc228d83160227d261c48ebe7affa1428bac334cba693a8a8bab9be3f246c657. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:38:12Z), 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/QM48F2104009.
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
Bạn Ơi (Original Soundtrack From "Lật Mặt 6: Tấm Vé Định Mệnh")
Bạn Ơi (Original Soundtrack From "Lật Mặt 6: Tấm Vé Định Mệnh" Rock Version)
Bạn Ơi - Original Soundtrack From "Lật Mặt 6: Tấm Vé Định Mệnh" Rock Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d68eba693bebdaa54628c54b31e8f9a9536a0fbd975b4e99dc799a1c22779. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FRX762313090.
Vờ Như Chẳng Yêu (feat. Negav) [Hoa Vương Original SoundTrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9e7dd3e3fe8cda18ecffaebc9133c486f87c1d15fb2e1d679e10dc8e8445cd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/VNA0R2400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb9a0e53f568058da6ad9ec5fe072ebafb3d53f206a426417255ea08159f935. 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/QM48F2505703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd9f7191eeed3355ff930fe022290a4c8397d1a66f036a510319c02ae395a59. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:51Z), 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/QM48F2505707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d98b3cb4ee4d973ad63dfa2b6323228c47d41c10d06e906cdb8e4d1d9dd1b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:31:22Z), 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/QM48F2505708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264ec27dbf6721a4a2c2bf34bb97d910aa92eea3445e933f1de838f6ec231f49. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QM48F2505709.
Thương Người Thương Người Khác (feat. Vuong Anh Tu)
Khi Cơn Mơ Dần Phai (feat. Tez, Myra Trần & Duzme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7574f39b7c356895515d56e0de1257a77eb18fb429a6edc9a93790b0a654e78. 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/US38Y2417297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0124ba139c664490f66b87f77e1cf903d2be2d33689dfd2e6b0f0d7bd5683d13. 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/DGA082311280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed6231e753c1519dd26fbcde3ceddb4addccdb1616288cc20a664c9f5c4928. 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/QM48F2162903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f88e4105da58a90ceeb30875ec2ef1ae61bca73111d62b8534b1f4d4ce76179. 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/QM48F2364704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412f21a79b753c2c0c635cf357cbef7d39496b4af6ca6668f6f99bc7721f6816. 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/QM48F2364507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236a17db522f6dbf2dcaee106dff790f20725643165bbba62d92089492c4ea79. 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/VNA0R2001012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346c5f87114beb69fc31ce89858864dc5947aad7cf1954e61aa53bffacb4c579. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/VNA0R2001034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6574b2f3f6dcfeabd22f57e9ead8ab220aefe7964b5b1f904984d82b4df573ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/VNA0R2001035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4ca29c99115268a9c88d4ec2de10f40f4fe67393e1f9d4b34c210a32a0f6ef. 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/VNA0R2001041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d9bd61568e28a2294de5ad7f1c320cb7c9cfa6657c105ebd71f5657acea06b. 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/VNA0R2001043.
Khi Cơn Mơ Dần Phai (feat. Tez & Myra Trần) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb6803aad2453884816927be4b67e4a7f87cb3f6f7483b52f7e8826a1a4d905. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US38Y2415232.
Khi Cơn Mơ Dần Phai (feat. Tez & Myra Trần) - Lofi Quanvrox
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b263ce671323fded5d5183386ff2cc086f3b76ca014fa74095a57a13de1e94e. 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/US38Y2415587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bea34b348c8e732a35707e3eb3cf1aed07bc90f22329d6febee5fc9dbf923d. 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/QM48F2465207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2d79c5faf3cd509b201361488b223c697bd0997347636baf2b100cb6391d1. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM48F2465010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2f371d38f2d3c9636e23831d2fbbd97e99e36dfa7b5615d5ff8583422e3ad3. 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/QM48F2263801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675566ca4034d2cb9adbe2e2a0b54d40e6e7acc08cc9f2391e090f84812616d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM48F2264103.
Khi Cơn Mơ Dần Phai (feat. Tez & Myra Trần) - Lofi Minn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5080c304d06e53dbf9d1e003d32e2e836b3333bafbf67ebc923b759d5f9657. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/US38Y2415530.