Buena Vista Social Club was a musical ensemble primarily made up of Cuban musicians, formed in 1996. The project was organized by World Circuit executive Nick Gold, produced by American guitarist Ry C
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 0x88040cec47430e780d79b26ab354bb6639b9a44d6f8369560a61fe718327077b. 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/39fddee9-4eba-4100-a486-42fe8f469731.json and https://artists.proofprofile.net/proofs/artist/39fddee9-4eba-4100-a486-42fe8f469731.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Buena Vista Social Club (Reedición) [Bonus Track]
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 0x615833f0ac2222f15ac7025b885a9e9675049530c20f8595e39fa84bb5a89c6f. 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/USMC31200068.
Buena Vista Social Club At Carnegie Hall (Live)
Buena Vista Social Club at Carnegie Hall
Buena Vista Social Club At Carnegie Hall
Buena Vista Social Club at Carnegie Hall (Live)
Buena Vista Social Club en el Carnegie Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8284e91572edc14d9a1008ff3d617e8087bd851bd70b773f01d0e611ed71c43. 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/GBBGU0059003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe709ad043717bf43d0aee8f092473ab84131fd0f2d10a4542cbc7b2a2812eff4. 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/GBBGU9700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e907bbd384aac60a24688bf11800d8bc64bf6a8d7bfc784576db26b002239. 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/GBBGU9905501.
Redención - with Angá Díaz, Amadito Valdés, Carlos González, Manuel Galbán & Bigga Morrison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecad99ace8bf72322dbaf08e4cabf8e8c0c2a1b43223e378ec080838a98d6919. 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/GBBGU0161002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7a80307169bb8cfc9654a662623bce77d5755940eb77b0ecd9a6095750d3a6. 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/GBBGU0469001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba54962f6bc3485a33571c26c9de473cde60a54f316b07cb3fab1e71a7c3e71c. 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/GBBGU0060004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301e98143dec2fb9a993c3b9d2aac5656d03c589b432666b2888846e7c57e95f. 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/GBBGU9700350.
Cachaito in Laboratory - with Angá Díaz, Amadito Valdés, Carlos González, Manuel Galbán & Bigga Morrison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882d4d5a66021b4c186b5c5e46ceae06cba495b90533e1794e5b294d402ccd43. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBGU0161005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e677f3ce73d9c9f6221333538b9f6c5dc36181f3caf63fc68292d1b682f6dd. 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/GBBGU9700947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87a5dc43a312f30cab09efda6ecca0aba491e7304ab84907d628ca3113b63dd. 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/GBBGU0468001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd203cdb54399e2ded100f070dfc26969e7cc17fab361541a362e20a77b56471d. 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/GBBGU0471012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83d01eff3610ce24135594d399f0529b06804b965134403cc0a3d3e4ef10968. 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/GBBGU0677011.
Bruca Maniguá (feat. Ibrahim Ferrer) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68672a8c983c6b8f3f3d75ea27785fe6b8798736963f30f22128fc165834d79. 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/GBBGU1490001.
Macusa (feat. Eliades Ochoa & Compay Segundo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb144bca609040c0d6966f0e4f1178939f51789256ad43d43c9393114f545fc45. 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/GBBGU1490002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5fbdac74ce24b021c5fd33667ed3929c43dadf7656f43b0ffa6ced82b147bd. 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/GBBGU1490003.
Bodas de Oro (feat. Rubén González & Jesús Ramos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a514d1b4d21a727a4520fe0f10b2d7b15eef63853201af478e8ac3c505f517. 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/GBBGU1490004.
Black Chicken 37 (feat. Orlando 'Cachaito' López & Angá Díaz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9eb5a43529cdf22853b579d4a8df19f7d4635e217d3d8d10095067dc2afa32. 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/GBBGU1490005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b80c3dd5b84d7288ad1e3707e99d503ebb12729b2a6178fcdb9f8db9e855b4. 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/GBBGU1490006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7ec3a3b2c2f06b72af24d797e9a5f245dcfe4669553d40dd00365792aabbde. 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/GBBGU1490007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a98e200e5defbaac1c55221da1770a39209ea79d9e5cd2b1c94674572d73dd. 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/GBBGU1490008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79c9b32f1ce020ce5e4bfd21917594813cb690518e422a47842cc62bbfcca02. 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/GBBGU1490009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe48ec4b909e72b30c156781fd3b16b476e1abde76e5be6de897e970a8729be. 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/GBBGU1490010.
Mamí Me Gustó (feat. Ibrahim Ferrer) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaeab77047de8b45fa4e0a7c00a44434ffefcd4eacce9f73a1998f221521cb7. 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/GBBGU1490011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7037e539682a87501e12f8eca344ee663801ab040eb0a04566a91839273c92fc. 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/GBBGU1490012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dd9796382705979cee4f6777f6189e058ccc59d964f8618538a56b6c95a5e6. 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/GBBGU1490013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5721d372ae197f66b5819e920f62398905c72667725665ab62cf0f354031d50. 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/GBBGU1490014.
Buena Vista Social Club (25th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2824b10636797cc75ccb8b8a7a7f11ac041e11e04079deb82060e5e68284d36f. 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/GBBGU0880001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fbc57b2e2962b24e2d0ae800d16743ee56d308a23077df2747c11d68743274. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBBGU9700550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4997ffd97bf6af0d3cf6594bbb1ffac5f1648bd4980b6c2be61f9062acd30507. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GB5KW2100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b2a56bd6f7cce4370761d27129e38872441850fb4dac59d57be5ae80c0442a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBBGU0880003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67625714d35726bed9f2adf70b7c8f053adc055d8b3fa945d6e4633403e01db. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBBGU9700450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1016bbd48b07e9f0bc7a856d6660a0bd599e8babfe6a13440370c9fe6051dd. 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/GB5KW2100114.
Buena Vista Social Club: The Best of The Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7655593faacff73091cbac15ec01c3deaaacf173990071d1d7d3b5ccaacdd650. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GB5KW2100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb144bca609040c0d6966f0e4f1178939f51789256ad43d43c9393114f545fc45. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBBGU1490002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe095e16f02968ae12e61f1dd19ff512a8bc68364e4d25e833c8d89a3c4fa0f5c. 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/GB5KW2100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5fbdac74ce24b021c5fd33667ed3929c43dadf7656f43b0ffa6ced82b147bd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBBGU1490003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc21ab74caf4b31739f6466d8f349556f71c451d1ffa7f70d7cfcbff89fcaf40. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GB5KW2100087.
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 0x8f2ebd5b4497daccbaf7097f0d8e2b66f96bd939b27733490daa38d004e1dd9f. 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/GB5KW2100090.