Irakere (faux-Yoruba for "forest") is a Cuban band founded by pianist Chucho Valdés (son of Bebo Valdés) in 1973. They won the Grammy Award for Best Latin Recording in 1980 with their album Irakere. I
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 0x70028859835ebf97dd22fde93bfd3789091228d2283e1f972693db2dae6d7a37. 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/831c26bc-8ae6-4d34-b22e-1da0eab58a00.json and https://artists.proofprofile.net/proofs/artist/831c26bc-8ae6-4d34-b22e-1da0eab58a00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grandes Momentos de Chucho Valdés & Irakere
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 0x40ed6506cf8e9ae97f572944d25cb11112e88c463057cd7d96b02948c9bb5bb5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES7350605054.
Misa Negra: Rezo, Acercamiento, Llegada Y Desarollo, Despedida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc1d209627e4c77a13ac0f3883a22526441a22814f8479a3a7d2064c23f68b0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEE790412120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255cdfe90ccbf2a0e0944580ad2c0ff67c02c0153813e38ff4ce0e17892a9dd6. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEE790412130.
From Havanna With Love (Live Belgrade 1978)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199c1679186b483769da599f4983eb8e33dbd426ccacecf66105ac4fad4813b0. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USWJV1000953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4352632ae312f42c3633c7c4d592dd4a6ccf8de52c6f3c34fad6850cf74986de. 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/USWJV1000511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae6a8d0ef328a3a8359f0c0920499446b3182447ec5407524232519f974809d. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/USWJV1000683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1760958080a01035915c953006da2c584a44bdd66cd9c9c3669f29a0e8a1ed87. 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/USWJV1000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1760958080a01035915c953006da2c584a44bdd66cd9c9c3669f29a0e8a1ed87. 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/USWJV1000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad7104b802c6211f6e49140c7e904baba1619c6cc70abb5f6fde74c04f6a410. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWJV1000249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa655ace39b917f06898d49159dceb875d7740e3e42dd3a399849f9b72ee76127. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWJV1000251.
Live At Ronnie Scott's: The Best of Irakere
Irakere - Live at Ronnie Scott's Birmingham
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d732912078b15687321159bb69a9cc9abd26b9165b26eedf47eac69bbeca15. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GBCAD1200461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef58f86438ccc5f0c5f8edb8b3c514ad07f84a568315340e06d135e5c159dc25. 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/QMBZ91593958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a650c23d96ec078ec98df355307f7cba39f57a6982268fbac4accc4467851ed. 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/QMBZ91593959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25ab7e0eb6b37459c83457ff4196151a312d6bb2e5b4cc1c0fe99fba35e1819. 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/QMBZ91593960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941002083306c386e87410ca8727136ce3cd0f453dbfebeb12a8a801e1ed21bd. 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/QMBZ91593961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0d7fd458c600be614d3f347849073132273d722bc9ab3f472e8457c0f27b4. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QMBZ91593962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cb4f9f899fcafc25b1b872e210ac1fffecc3a72eca75334c7ee3f0c950acb7. 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/QMBZ91593963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b2b41d8d0911321afe99d23898c812fae4c61ce947da5ae418742820e15404. 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/QMBZ91593964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721775417a4926317467976601d13c19c4db6afd932560884cc638234b1916d5. 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/QMBZ91593965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f7c17327f4c71d607b7534e3ec862e901b281e233dd6ae20e386b0eba20181. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QMBZ91593966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c49b413031a5ee84826260d003d401fce72c230ea5a6735eb8e2bf6839ee0e. 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/QMBZ91593967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de1415f9404559629946801341ac83f13e49dfe0f9a9d8493917ac50610b428. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMBZ91593968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b58c2f404d6803ea4f678517ab73316907687dfe6da6ab2638b2ca0b770ab05. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/USJE61611183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146b77fc1e13d4258ef38e536ef86a5f81a25cdd28608eed9863d33b0d96ec48. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USJE61611185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a8b9bcf2875e01bb58453faa99a8e76ff8e2370831cbd3bc2de67974eee0c1. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/ES5021600473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b037e06810392f90a0f3c63ebbfb6609a824df33a3b156f21499c687b64b9a5. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/ES5021702531.
Solo te echaron un medio - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43f1f47aa621547b83ded2c3ed8674cd45c42f3ceb638bf791e2d2a593f84db. 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/ES5021603850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44c1055c91a02087de06fe6af36eba3e34d93d1c8b1d909c5bd0c42664ad311. 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/ES5021603851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822ec845bd68566d1f1f33a09e71b941d32be3ba1d62e85e8d5c6fa9299fbde2. 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/ES5021603852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc881a1e0d34b31e713aeb491046ccbc157df73b73dbb1ea6558aa5ccff01067c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES5021603853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cded01cd72cf5c36bb1d9c83a601eea42b31dd6174fbeff7c55b448d6595d8. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ES5021603854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1a3d65a6fd60972c66b714cb0b2b100f627be08c1e4442805ae12a8006f859. 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/ES5021603855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1adefbc63b67481528082857de284372e4b3e21b7f26d36a0d3aa97fea34de7. 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/ES5021603856.