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 0x45635377d3e8cd49759d89acc0045da2e81f67200e9c174d52ee1f1d4fd9dff6. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba9e5544-294a-403b-b66a-e1356a92b8fa.json and https://artists.proofprofile.net/proofs/artist/ba9e5544-294a-403b-b66a-e1356a92b8fa.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 0x934ab9f5fe3957c4ef8f9ef3147d8e78fa020d8e932d6ad6085471bce9c3f8ee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWDK52305085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b05938cb607387b8bd1de722e4ad98088dfde0790c57d24ddc87782dfcf7f5. 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/TWDK52305087.
偏愛人間煙火 - 電視劇《長相思》推廣曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb3dc26cd757800ac0cc540900fb5a42ade58f44a9ece8406ec530e443ae5ed. 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/TWDK52305089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96008f2d8b0c2207bf94e4746d822218e5bc4379efa1e51d383a3391e40d3631. 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/TWDK52305091.
偏愛人間煙火 - 電視劇《長相思》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db66ea4c7f5587528b3c29df3bc956b854386e3f225da3979085ecd47eddb32. 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/TWDK52305093.
有你無你 - 電視劇 《長相思》瑲玹主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c70e1ea9953a792b2e8c1147220ed52563e81d88084bc516877b026efea6fc. 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/TWDK52305095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d29630ca41c3593dd390c3a1812f6e90e63dfb3e1decd8f583abf51117b69c9. 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/TWDK52305097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9de550096889275b052698ee4d4b56abf56b4cc665fb4f6469478ec14cdacd. 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/TWDK52305099.
等不到的等待 - 電視劇《長相思》 相柳主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d6883027c2ea22bde1d90761d9dd53e0ba2b1300cf9fecbf49cc03ccad31a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWDK52305101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf062fe54fb1c3ae32cf5a7cffb1a254acac06897ca6c4ede6259b7ebe7052d3. 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/TWDK52305086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56bf9af7aea6fc157091603136814d6b7a921e3ae3a6de0681c1b380ca98d82. 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/TWDK52305088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de2fa2cfb52a1ec8ae692aeb36eba9d8da760867309259e66c5e0a9497935b4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWDK52305090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de5f81d6dabde3d992b49213a09d8cfff6f6e436085e4fc509a36e3d9dd4cc3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWDK52305092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2db7e8802d944358d0a734cbd63360ee161ff1b514e24b01ff80cf90ba31ffa. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TWDK52305094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6829171c3ff503b92968d9bf2a7554b98711bad078ea421d0caf1b516a7bef4d. 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/TWDK52305096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d13bbf1737b73a2ace3c1e80d0c4ab3ae8e7a94b387a6183a15c89145c2bdb. 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/TWDK52305098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7ba5129a31c28646d2dc3d1f0bb53cf1cd81f098d0cfb9830fcc1c207b58b5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TWDK52305100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1ea8927d7ebdc4a0c760ec79fbeaa0d1ca67fc4bbc5a46e30f3832f76c461b. 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/TWDK52305102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131424c1a671b522512931294de65ff61c460705c41f59e6d0ec46b5ecb51d99. 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/TWDK52305103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69c698ab9770d32e35ef8f3b6b5b6b9ce3e97beba1786b1d5fd2e8d4e1385d5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWDK52305105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e02fa063c736bd547e35b219c57d2bed7960159d8b6100bcfcd0765a995ec5a. 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/TWDK52305108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadc22e642cbdf4ac9cda7554d721c9224994b3c0c4358ec42a42b93ee8d3ff0. 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/TWDK52305110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb36c8d5db922b6482e26be63e6fc93a843699c59922c0596d8f9c52fa78660. 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/TWDK52305111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be301503d3136e29a97b27cc6937598a0446b57bc01ca8e0932a13d473bdf2a. 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/TWDK52305112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f89be92682869cfaab4360909be134317901223df5e9fa97f8ccc7792d71dbe. 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/TWDK52305113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8521b2132f0f7005c9eb60505f13f331def35d60ae2b68decb3a27312c6b876. 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/TWDK52305115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45082bf700ad399ccb9c1c8f3a7693462abb1b784e239223425e4cf90446b39. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TWDK52305118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005e929a621525eeffe50717c819d8c3443c4a2b5087532b715b7ae0458d1cb8. 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/TWDK52305122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f15f0757b6e71d7af3fbe4e951ea30be532b14a56697359573542059a7b972. 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/TWDK52305125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9434930d6124c6c07e57b0661a50813f18fd1764ef1413324822e4cf8eb9834. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TWDK52305126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83de4a86469193dd7e9a098a276c128c72c339b3a74626e7fd7498eb600cc28. 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/TWDK52305127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf854ac08ae1e4f882443f7528093a3e95089dececf07481ca1d5270ca4afb29. 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/TWDK52305128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fe40d26f21ab7d6843fc83931413726bde029141665b2f5cc28f683650cd97. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWDK52305129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7b384ef9256da49556aaffc0ab8972336fceec392512af2cf439df1690a3f3. 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/TWDK52305130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa46a15de5eeb14be768f6c4b1f71626af53ac4222f55f3d63ed90cddbf32b. 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/TWDK52405001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257383a1f64229c0da9259250151539468c1cef12c85dd07d6d86f3af6f6ee54. 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/TWDK52405003.
完美表現 - 電視劇《在暴雪時分》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeed65368cf8f88585d81e31c67c88d96d1e09938bf94fbf418cf4d9c080600. 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/TWDK52405005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebadc28cb0daeee470681834c2443a4d7b4df1a26935c238361001f20068de2a. 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/TWDK52405007.
在暴雪時分 - 電視劇《在暴雪時分》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3e8dc809dd33fabc680f6f133e4bb5e4d3888a32e845a1ad6c67dd541f9c0e. 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/TWDK52405009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51444b7c23c1d23fa2445a4110ad8367d0f6eee6dbf02ace8645aa49ff5745e. 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/TWDK52405011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199ac29362ff4ae84881a83ecf9d2e58c94b86420321252415fb30567087009c. 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/TWDK52405013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89f7e371e44d6709afb76585bb530612dae39ed8bfebe58821725717dccf94a. 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/TWDK52405015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d0371ac6393b44b08e7730945e414d9427599fb61f0c70892904a71db5a05. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TWDK52405002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa795bf86d11b47cbf758df3526bb1a3679d7d4307502e1f1e0f785d6f8330f07. 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/TWDK52405004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe1e9cf2e1e8d555516a827c876d2904fa638ac8146ac4c85d921eae60af597. 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/TWDK52405006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3272a0eb0858df178210a514db5bcb88be8db4ff4441eb991fa59d81540e583e. 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/TWDK52405008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7af47e51cd3982a6f36b599c3ad49feac57d6d530c09a1067a7eaf6afd01d6f. 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/TWDK52405014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d03cb33302e660de77dc4eb61030df84625579c99ab34f8028db913845cf96. 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/TWDK52405016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1aa2f565da7c53470bc787cde45e37682aa50332673bfd8d8c3ab25c7a153c6. 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/TWDK52405018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c5502ac972e851646ec59a307c603abe7e32055a287a125d6d520fc0c6e492. 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/TWDK52305046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa410f39cca4f5568c3ca4579a5bfcabae3f7ab582ee7d6b28a3cd5b7f52fd57a. 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/HKE022211974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043aa81a842fb989360f511138bc259999c97cc1dbb257a0f174e3fe8fc7d093. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKE022211975.
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 0x0ac80eacd67687d53223042fb40a34d0c5760855dd52bd84e729dcadc326835f. 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/QZZ972340076.
以你之姓 冠我之名（电视剧《你的名字我的姓氏》片尾主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3aaac070beb0a660673730f014bb13b63d2fd66d2e855e0265b31f383ae7fb. 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/TWDL72107012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c303c9e8afa586a78193ec08b7a568e5a5c8b2c59aed9f02ab82c42f476c7a2. 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/CNZ502200571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13905de2b28134655122b4522db3ffb50b930b9e7465fdfdcb92ab13d2e7a58. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TWDK52305063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc986afd181da75198bc020916fd667cc3c8a57eb336705e4306351d56eebb8f. 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/TWDK52305065.