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 0xf93fc8c0f95d20ae0965d0d53e7005d2ee666cdb5b3b3836a43adca94b1a306d. 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/0ee2bfee-5aed-4d9d-a9f5-5a1005649907.json and https://artists.proofprofile.net/proofs/artist/0ee2bfee-5aed-4d9d-a9f5-5a1005649907.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 0x940f0d11a13c5894988b32854e4fcc7f140142fe436fbdb2a259a13d8d24c661. 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/USQX92104010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b7523e1323a04b545b995349e64a510ac3c864a94d7e6c1a5859f7c299673b. 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/QZQAY2460329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa619df4f0d51a94c36130d89c8fb63bd69799095ef3a6a33e295781793d52fc0. 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/QZQAY2483413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe53fe502889ede054787ef6fc4fc927e7f0909c904d344eeb2c6d42bdf1b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZQAY2470308.
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
Doble Tono (Musicologos Musica de Chipeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098d273724d9829aeb95788bc1e2c654390418b5e3702f46c266d38a6ed7d94e. 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/QZES62320609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329626bfd013e74d9c34eae813f64f042129252a3adcca6335c0154ac767ba9d. 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/QZES62320610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38ea0a238f319da02690d89f23d3f6640ff1d274e664c3b4392fc85cd1c89d4. 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/QZES62320612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c0e5b2df22450f4d4884a1cdd070b39171f1033bd10d5711691357664db175. 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/QZES62320613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99351b0dd85fffb9734bf62077f55ceb239541acf348b10157506a23e0f7d918. 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/QZES62320614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5938410f2e38754ceb26809446194c8565c4506f7bcb1fd74d424d1d42ad06. 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/QZES62320615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ce0bba3337e2030be051cb080e9aaed6c66480bee89e1f461153f100e9c1a9. 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/QZES62320611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38331cd490c33c2f647c140a826dc4bd20b2c0dcd75a7c1eaeeef037e22b75d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZES62320616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ea0baf00258c6d53ddd3b736fc0c13c0b6c61876f116de266bf363aa071f7f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZES62320617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bae6ea70fd5cdbcf70c198d8f833f80151bce2e1040c01aa31dff0f04693cf5. 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/BK4DA2427650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146133639d2d62738507cfced1a2d8a144477c5eb1a46d5138c26543791d33b3. 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/QZSYP2404907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8a8bf024c27add360fc86601a2ca7ec22cf037ac5a85a7088fc5b105f3c197. 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/QZSYP2427111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0dd95e4ec5825d4f559b9ec58559cef014932e93c52b44a7c831f2a8ae4eaf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZSYP2419582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1c5ac5bb425d5f11740db37a15663280c7ed0b8013e04c4007027ed2baf092. 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/QZZEB2332833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbc7149b60d01e5c3b45cc840944c8ff629580cf033c7168a7036e7db0c835f. 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/QZW9K2330190.
Tongparty (feat. Dixson Waz, GuyDo, Kilate Tesla, Penchi & MC Leléto) [Island version]
Doble Tono 2 (Musicologos Musica de Chipeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88afebe39e0258e03bc35502fb76fda9569995add6f5e4cd6200e408560eb9af. 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/QZDA72341299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff308a5ae3ec4a7b2114ecaa66ebbe011fe4eef0f38efdd9e25417067c82bce. 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/QZDA72341302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91dec318a19f09375bd2eef539e343c1fb604a80a914a92e8decad2cf75836e. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZDA72341300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ebe8cbd6c6cfc416b7278681b7f86951b5c071c204d979de9abf797095a7d2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZDA72341301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde0dbdcc39f5cd7d735578f67ab075adb2c725ff1124e4d849f52860181b89f. 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/QZDA72341304.
Toco Toco To (Techno House Mabrada Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e0a66b4739c6236ee35118e3a9cbeda6e905dc4cab98f89a3931c27b74e2bb. 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/QZFZ62356555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c002af2cf0d0023430c85f51ff5b098b61e812d0fc8171f309c8506a049a72. 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/QMBZ92304417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14370f565f66f2a84c68e3a7228b039e33330ab9709980e9b75f8ccc2e1a65. 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/ITF252300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c1ae59df1a984c10afc8ea17d89fd038fef5003aa163e05a9e52185092ee1f. 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/QM6P42306838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796902fdc00d3718c582c4a5313ef5d867e560bdc2f76d4875380f03426a96db. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES75E2301029.
Hayabusa [Draxx (ITA) & cvmpanile Remix]
Hayabusa - Draxx (ITA) & cvmpanile Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0623a535062e685ab3e670e155a6becc54c1817469543b85e2d5bfc9f0dd911b. 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/DEXO82211608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3882f2ec87d26e290a318fc92b40bd1a6dc6a0e11f05f346c83a1bba72dccbfa. 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/QZHRC1900472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60a2a1b735f30e71d02a720f459422c1fceb6283ae9f0bdcd4f1fbef8a74246. 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/DEXO32235318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9bda1183b738442c67c015f38840d26e461f1f8ca0f87a1f2ce9930daa46af. 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/QZHRC1900638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac9125a17009ea6697633eb0bb9ef1a2f89e5b713344e6b62f2b93f194e7d62. 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/QZS7J2246814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e563f6f2912b4b251c5cdd32b4daa7c0f9e9c388abb7e7855f157fd67a26eaa. 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/QZTVM2399480.
Exotic Race (feat. Sean Paul & Dixson Waz)
Fast & Furious 9: The Fast Saga (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe360fb37a6d71d6f411b0edc8d3aef2ae57ce94ee74e62d6252126eba1056060. 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/USAT22101859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575caba61474cba4eae170512f0031974203310d4a0d22121a871ac5d36afd55. 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/USZ4V2300316.
Dalo Todo 2 (feat. gabo el chamaquito, joukerr music, dunkan, Benji Gramitos, Dixson Waz, josepe el demente, adan la amenaza, Basty Corvalan & RF Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa7ba870793966b47f38579e6d0c11f67d2e9d0f99c6fc344064b20d4babef2. 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/BK4DA2320309.