Adrian Quesada is an American musician, producer, and songwriter. He is best known for his work with Black Pumas. Quesada is an eight-time Grammy nominee and won Best Latin Rock or Alternative Album a
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 0x8417ef631b4c1da557f75dccc1cc320c3453c1e9f23854f303a7479cdc7992c3. 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/9437f961-0193-4c79-be4a-8ea98a963a70.json and https://artists.proofprofile.net/proofs/artist/9437f961-0193-4c79-be4a-8ea98a963a70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Look at My Soul: The Latin Shade of Texas Soul
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 0xdbe4259783bd00b441d033b4f231807fb546814094c83f042e9324f2b7550ba2. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/US66W1800311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e217602b8dad3cf412fe9413637294b7fca7a97b85e73973709ae4afc089e03. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US66W1800314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601b9258a7d08be74217c8fbed80a8ef5d9ae26a8b37b39df4dad90eaa1fdcbc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US66W1800315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784a7a4a21d72053f15f182dbf3666d6e353e2c6286d456338a300a9971bd763. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US66W1800316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e23c57a0963c09145b2dc827fd023b571072b45859e79e8db55e4d788c24241. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/US66W1800319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b91d68932a7fcdcbd79cf7815201f3bbb709dc6287b572c9a2302d222e75a1. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US66W1800320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784a7a4a21d72053f15f182dbf3666d6e353e2c6286d456338a300a9971bd763. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/US66W1800316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc977880e1c40cae0c8157464d2545b0033878a2fe6173f0bfc59c4eb0b0dae4. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USATO2100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110ca567bfdd48c2a11d7ac7814222d9b569c6e3b8397ddc8db763aa3b973da. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USATO2100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86dd21adc4565ad705aeb54c5bb88a987756f430a61374affad5a2e3e880f92. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USATO2100298.
Eso No Lo He Dicho Yo (feat. College of Knowledge)
Hielo Seco (feat. Marc Ribot & Money Mark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea9a86cfa1ea3ac1ad741e7759463ceab871153fdbca45bc9da1490205ee0c7. 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/USATO2200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee32d25581e833702f9261c0f807d587550dd0ce634798d0113aab0c557c923. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USATO2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090d51ff9f4acb64206dfe41a11c2a243d97cf60846df6b29072b4f5bd173d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USATO2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fcd7858bcea18630a30f0cd78937201c07cb7d2f0cd38ecacfdd6d9eb0f30. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USATO2200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0029521e08b996ed45dba4342d71994f9c1c09cd1e7074e77325ba0de6384bd9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USATO2200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242a71e71d15fe906a214c67e48f5f4fbc155734fa9936b941aafa5862852e9c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USATO2200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d561e230fe0816c32f5ef66e4311fba638eb5849833ffd470e812e142b1ddd7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USATO2200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b5a05017b2a8b335a361500e67eaaa7aa9575d0df06fb726aea6782696cf50. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMB622300191.
Like a Bird (Sing Sing Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb4b198f44579ca0dfbc7dc5c5f4cb4d8cda35ce18864c4a6b9c049a10e8f85. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USF2M2401169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e87c9c7343fb55292b4d2ac8fc187e41a7952ca964c9778df29cef5b987fc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USATO2400518.
Ojos Secos (With Cuco) (Amantes del Futuro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36fefbd37320ecba69f06a917245250076ae1e6810a7badf5a7bd4d8710546a. 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/QZHZ52248738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac68fbbd069c575c41725a68221fc3e133e8fd15351fd1ceffa210b89df320. 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/USHM81343142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc0e22269ac210aa5c9781e1236958068a377b7224f554ea79580a2c201b583. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USHM81343144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b5a05017b2a8b335a361500e67eaaa7aa9575d0df06fb726aea6782696cf50. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB622300191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6725cf54d00b9aa797afeb3f4840d01a8879e9953c1c7754e4443c1fe2c3fc94. 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/QZDMQ2250239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6880e68d1051bab186566add490bd513dc5830be145144a83bec013b748c2a1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USXR62100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62e54cc1616dc49033fed4b56546bc579ef54e0d22ceafa363a5eb8bed88f50. 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/QZTVM2210328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ddcd389d0346678370e530d4358078156eeb497515eb9c68dee248338b9bd8. 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/TCACM1651005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e2c05073c680a83f6f241262e3b591b6512372ed12a6eb8bf555037a21e20d. 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/TCACM1651006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd681e79f00ca221888ca5ce4060d8d7a80140bbee7be8f95e5aff93402f8b6. 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/TCACM1651007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309b484cef6bfa06457eec96c2a9b30cc9adbaa8721abcf36576ef6e0d5a4b01. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCACM1651008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4789cc09d5161a774db0af9d55d8f2a59191a04c7b4d1894ab42df9f6263f60a. 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/TCACM1651009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24659e6d7ebe630fadbc1303286f2c7c270d9f8928cb513a1fd28f78ca1dac7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCACM1651010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cd0da1ef8b204dc1cc5007c1422a62be1d11619b20d50a6b98539404b002be. 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/TCACM1651011.