Cuarteto Patria is a musical group from Santiago de Cuba. It was founded in 1939 by Francisco Cobas la O (Pancho Cobas), who served as the Director; along with Emilia Gracia, Rigoberto Hechaverría (Ma
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 0xda31345b18b03f6bdf0f58cac67e094926cb0f4221372f356af34ccbd5a3c29e. 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/eb01a154-e2fe-4ef2-98b8-a0c40eb6f940.json and https://artists.proofprofile.net/proofs/artist/eb01a154-e2fe-4ef2-98b8-a0c40eb6f940.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 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 0x0ca8a34c4013c0dc55fb5b67c50fae67cee0289f613936c745c04742fb16b939. 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/ES5021800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962077cfe40a6ea8bfbdc166182c9ea541eaa8296d1cf7846dd23de7b538d49. 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/ES5021800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0420064df9cc8eca3ceac6f718ef3db22bba9fa72b1b0b2b83384e48c921cc57. 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/CUA021410583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4b5384c62ea5d431026e20d0bf9e21a2913546463cda5fe9879d6d597cbae6. 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/ES6601401439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93a14b5f0e0ceef1a3f62c10191b4caa8e5d30c8ab4d869c648831c2787a768. 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/ES6601401449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ba6be4aeff8dedb803610163ac691c4fb6ae94b147c30f2ea7fd5f40951f54. 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/ES5030000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa322c612532694d494ea31f544064b8f8c90e0b4fe1068da5a0d69e8bd6a9900. 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/ES5039900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3727c4a9f96c4359d74cee61928c8039117bab9d6e589b358b6ee073902812. 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/ES5039900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc4c9e934d236b1e08a77ae55a64776a92ff4d272f9527ab73e45abeb509237. 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/ES5039900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c28a7f8a2d9e581e3a23e4bb5806f99a9d3967b8f1641d3908ed8610f9b0ab1. 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/ES5039900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d5e3b425791b971ffff104879b599fbb6a7d8a80cc3154fd320179acc6ee09. 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/ES5039900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234098e4f570397e0333842eb55f9c46cd31f4cb2dad47b7b3d5951708541f54. 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/ES5039900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df4c5f0fb97b08a86bd32796e79896da0e91011486e749c881c07dedcf52bc. 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/ES5039900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42c8987fc7da1c093bc92ec138f8dbcf6cadf2a44717288c9f59b69eb13bad0. 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/ES5039900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebf19027ef312759a745ef1aaff51e5a4b79c4b50d18ac8e0b09fa8a0cc67f0. 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/ES5039900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a230fce86fa997f762f9e507c4802ea24eee62e8441aea95a9609250a96693f. 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/ES5039900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1183f56bf3cfa34e5593b14ebf18f3bc6759fe46ed480f1b736426bb5259505a. 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/ES5039900055.
The Real Cuban Music - 100 Essential Greatest Hits (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752bae2079d205595f2466b36f3f1c133d756fe65a59e4c58d709ef6a42f8adb. 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/US3DF2408556.
Añejo Carta de Oro: 100 Joyas de la Música Tradicional Cubana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00474bf5a2144976bd79947d931628ac1a7389b2b6bb8b7ab54afde8d59792c1. 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/BRWMB9801569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa452f0910c133b8c2e450e78c70576e9576415a3e860d83a114d5fe134cabd5. 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/MXF160101568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce97786edb35d2096165a7f04e6f64ce6d6fab1cadbf477e6e5af54ff46df122. 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/MXF160200525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dba024ea2b27c2e49acb69f469d569409f63b8a84aa2c3b08512abd3441a23. 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/MXF160102055.
The Real Cuban Music - Mojito Sessions (Remasterizado)
Un guajiro sin fronteras - Sus grandes éxitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb026a8aff4cbf1aac4f7ced644a289f06a9e83d2d808f3aed42eb8418bf685. 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/ES5030300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a326a8fb7a27023c95da96e3b060f79358c3fcd53bd7eae398109fde58b9082. 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/ES5030000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb56c4b14c60a59a4985d820c62b8e364bb3f99820f31ec7f37819c0465ead5. 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/ES5030200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce5236c9d84cd9e274a9cea2a1e0cd79d9db1c34546a8a63e86b23102b124ba. 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/ES6601701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1099169d5955ecf320ea8673baade03343d9c85efb47eb37339ae43903c52af. 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/QMFME2168542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1554ea8d3d8b0a3755de3d5a9686ed2f2cf3b4c8f20500f27f10ddabd8ab717e. 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/QMFME2168543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a697b2a71baa81e669f11ffbd1ed01490922d15a0a89d3ab9c18d62e2ff801. 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/QMFME2168544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff64bcbd9b77979ad614e51a19ca12cb7bcfead6b1d174a7b3c12afbf00c776. 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/QMFME2168545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9e07bc6a0656980eabab06eda21eb9e0657cc63b39565ae485775cd5928c8a. 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/QMFME2168546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4947b4b521b5ac93d723fc034eb858ea7d207b024e8f33457dc3e5654351a2b. 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/QMFME2168547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe027be6b34de2360149a799d17dcb659a55e6d2ea9f88c2b86bf00c8a74e54a1. 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/QMFME2168548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62149231de556f17b15ccbd9bd51fdf2cb6868ffbc6599db218b0dbe01829ab5. 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/QMFME2168549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875cd76e240d2a8b3062b955016e35a8454b7fb60172fe319a87e7ffce3830f2. 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/QMFME2168550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100413b5db3e0380c3948574238ecc8d81f46d7e7f2135eb8c007cfc8d7eaf51. 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/QMFME2168552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f0979cb95ac32ffc50a49e73444fff7d58737cd0fb9afb640ecdafc45f633c. 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/MX2160900245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec32f8243788e726c3056939904f96486a67de89b2607305a1bc0418ea58d444. 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/MX2160900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0307cd849f6c225df2f4344d908967995a4ed392be4260c900e7da7d0bdb8e. 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/MX2160900248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b645d0e181e8a0d57e776d5d25428e418caa6f4a38b77c9e4e2e8d417fc5a1. 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/MX2160900249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d21f9bb196be9590031d48c4f42c367399c715b534eea193219016323e2def. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/MX2160900251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef18eaa8b4326e9e0b3976d2f09b9470a58b137b9a7efb13d08df05cf209bc7. 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/MX2160900252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c4f2b3c0bf697da0c93b4a9c6e328e19b85903a4128670b555c8fbc4471a65. 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/MX2160900253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fc28d06d9d3a66981aea06f0dd0a97bd1599ed76e9a35cef38376c6d547b64. 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/MX2160900254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44692514488a8dc4f1b6af49cf4cda7c045ee050df328036867860b3714de0a1. 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/ES5150236012.
Antología de la Trova Santiaguera: Alejandro Almenares, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec96c28b0bbdca005a91d7920cac38c51eba4f6a7efc4af6a908bbe2d8547de6. 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/CUA011810702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3864c5d36ff291d49d5d04a254f3f7cba2789e271733e0503eab48cff497e6b. 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/ES5070300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce35e3d3ee0a011f441bfe95a1a478971decbd39cb63aa2561732d3d0613716. 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/USWJV1000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870c26a36fa6266c185f57442bda5051008fd855b955d6ca036528dfc45b367b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/MX2160900653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6928ecae872231277c5a04be65cc09526a7bc5fbe7118aea5b88645be03465b. 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/MXF160201452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc341c5e7b5d01c630d2ccae6ff797c87b19c34529e0245d987e43e14612bc5. 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/GBMEZ0731613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb8705fad07a6c2140dfd7953e61b2ec620fa0f53ada4e7745ea0b98e2da700. 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/MXF160000558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31397516ae56c36d02bd731f8018371ac61ab6872060943c72a5bb0d8313c6b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:42:23Z), 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/MXF160201111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ead72544d622fc4ad2afd8254b1c49f72b8fa85492ca70e7f8a1dadab41ea9. 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/ES5159904010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b8dbfc8e7fbb86284baffbf3b77c6b432e8c776df4bf69ecd191889a4c4377. 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/MXF160206177.
Inspiración a Santiago de Cuba: Calixto Cardona (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99fb634b23daab533a4e31047eea9247a54a6c6c771d94db1ddcedcb2f26c8d. 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/ES5021603215.
Celos y sospechas: Canciones de amor en duda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda101f603b0da4e75b13b935834bdbec3a6a4d57b2515c401d704758958a281f. 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/MXF160000201.