Pedrito Martinez is a Cuban percussionist, singer, dancer and songwriter. He was born and raised in Havana, Cuba. He is a Cuban conguero performing classic Cuban rumbas, Afro-Cuban folkloric and reli
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 0x3ad1fd85d4079bf8fa1c8bd4006f9e878e2d2227b4de6af900fa90240a460348. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d51c0a1-05ae-4c75-805d-18ea1b709fbb.json and https://artists.proofprofile.net/proofs/artist/5d51c0a1-05ae-4c75-805d-18ea1b709fbb.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 0xdde5fa88e588a7023e66bdbc7eccb36252bc74b95c4b53cf6c54efce811e1b04. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US9331312401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517dea1f46a06e956f4db487cef6d66717959418be3c32a8556e7c1fb344a6f9. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/US9331312405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60a77aea373009f659e94cd7ffaebd12b85cc0a73fc8a5f4d716919be26c56a. 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/US9331312406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56a5736345ecb42644df3b7d9f18fe07708ad2d2873bb888bfb7caacc289b8f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/US9331312408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea4fab18e4c6ac2a5e2cb233e3ff11273e5ca2e191ca7b5b51cf67cab3dc0a4. 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/US9331312409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bf0a47e77fdbce0c93bf75e4ca885f0474ff9166f3004023568741a2bdb057. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US9331312410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906d27377050af24cfc7d822e7136ffd7030e214dd9e9ddd6d843191a4250176. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/US9331312411.
The Pedrito Martinez Group (Deluxe Version)
La Luna (The DoctorD Latin Radio Horn Remixes)
La Luna (The Doctord Latin Radio Horn Remixes)
Rumba de la Isla (Pedrito Canta a Camarón de la Isla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1d306a301e54da0ca9bab5020e6e1d1ee4239d555d17e2008c5e50e20889d9. 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/ES40G1400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cc0825ed4a19a50e548b35f4e07f494eae3124912afa6ed5924aecdf7e39a6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ES40G1400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e04c949aa1896fc1181db2dc9ba011bf6520ad33e998ce26fab4c82784c655. 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/ES40G1400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2057061effd7a3efed24d0bc485ec8bc4a2f4aa9c3966c6faf8e5106b47ceeb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES40G1400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623cbabf31a4b5573e6d8766a873d12fda9d1e9677f185e9fc1268b6d16da248. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES40G1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e20d598a19b9c0c688688bc2783983c47644dfdbc0b5df5fa0258174608895e. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/ES40G1400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e7131b454057dbf95c09b279d0f1160c22e7640c8dec4450f032f457a0e4f4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES40G1400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d98b9f0cbd1da04c96d61e447356b28939fb36cc407705d674dba863e0aaed. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:04:51Z), 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/US9331619501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f1b541686d055a1c50b99434f586c3dc0bbef359bd66669aa0a9ad62d2d24f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US9331619502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d1c3e4f24166c25bc126b2338148261cb9dcbd6f3b77c1bb62c14900d30c1f. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/US9331619503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c496808b94fb21d217bd62ad7d9ab0fb14c9c291ddb20f829ec5f756ac2a2f. 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/QZHN42098487.
El Niño del Tambor (The Little Drummer Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d13aa62fa4158a5c51354dc00c313df43e749562d8ed6dd7202b410e5b0a81. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWU2008793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bdaaabcbd4f0147f2f5b354f3f31ca6d3e63f17b3b5a750bd92666422ebdb9. 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/QZHNC2025454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc636f5ea052134639e3fb0850ca45160908a625214102cd0bf1efe2168bec600. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDA42132162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cce44e8bab3fb26894625797973bb293fa5ce6c9262f7a3e39139fb4d629f07. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZDA42132164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8655a325a2d32494347ff6c2a953111451981b5cdf919ef87bf6a11eeeefb1b4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA42132165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926ce8204754fccae909b676234e773ae9efe93341fbb6a18d009f0ea474a6d0. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZDA42132166.
Cuba Isla Bella (feat. Gente de Zona, Leoni Torres, Isaac Delgado, Buena Fe, Descemer Bueno, Laritza Bacallao, Waldo Mendoza & Pedrito Martinez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7b03ea21efd47d14f8f42dbf729a72088095128c17d2ed25175558d82d5cce. 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/USDY41646175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a658543391d1a758ac5f19b49e4c102285822e69f0c72f632e23260f38e5dc5. 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/USEBB1200006.
The Man with the Hat and the Tan (ManHatTan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c574f37937758b8b0ddf9a26845f41dede6cdc8539d611667311449735ab2. 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/USLZJ2258537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad25c32441ce81e2642849e5951f46e818ded457c002a645335a481453a1cd48. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USEBB1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac6e430e858264e05b4209e69832489a03634c01f4f7e48fa5c3a84b7efd9ea. 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/USEBB1200016.
Original Music From The Marvelous Mrs. Maisel Season 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b7b03843504cd7dc5c789816b8f3e3de6020871501287d6f7433fb9154e28f. 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/USUG11904228.
Manteca 2.0 (An homage to Chano Pozo, Dizzy Gillespie & Cayo Hueso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3c69b81e457f2411bf6d231800b8290c3a7ff3a4b65c8218f6b1cc7f2c5fd7. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZTV32384359.
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 0x26eba0b7cfc099cedde0e067c216076a86d6a873995c24c32157bb0d563fe533. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USEBB1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce2371e5f1b7a2aca465aeee86ed537a6e6bcc78767c443e07066e3718da9d. 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/USEBB1200017.