Carlos Manuel Puebla (; 11 September 1917 – 12 July 1989) was a Cuban singer, guitarist and composer. He was a member of the Trova movement, who specialized in boleros and patriotic songs. Biography
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 0xb974e050dcdbfdde8333bb8763a4842c523fbf6b02ff7817614d125a9c50c091. 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/e86d4203-3ccb-4ff4-81d3-991806b576a2.json and https://artists.proofprofile.net/proofs/artist/e86d4203-3ccb-4ff4-81d3-991806b576a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hasta Siempre, Comandante (Song for Che Guevara)
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 0xfade113ce2db9540dda6d2f2c13e9564124042c2d44abe00c3cdb95122ded5bd. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEXN82257841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9731cbbab0af86276641344c9d9fb0b47570c56dceac876fe14a308fd180d217. 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/DEXN82257843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05188e8b632c2aa68dad82154a79bc0579145a86bbf55d8999e280cb0deb069. 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/DEXN82257844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23984ead6b3cf80c5fc92a4dea5037f2ff2b16cde6516d2965ff27608e929063. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/DEXN82257845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c42b4fd46d8016bf891ac749034a9e274262b5a98ffd61fff7d637ac2cf81f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEXN82257848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafccb7ce00f41075dfaa72e42a78d959cd5e849d106a75a58ec8462465bfedc8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEXN82257850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267b7ec8f597912a3dfd2cc5741d62b982d9602719d88e28a23b1746bf4ac60c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEXN82257851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ced0a89f27d1ddc5670e1f9527f1c0618a3444cae12c755b5aa4cf839fa1be. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/DEXN82257886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90220f8707d3a24b558cfd01e0f38e837ebcbb55c726fdf9fc08207efbcf627. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEXN82257894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2042dbdb8690539d2f672bfd84b24fc3fba9dff388060221d9442fbb51cf2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEXN82257898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaaa57bd7c1bd47ea2e27970409d7e41d137751446b6f6aa0ad5edaf662efcef. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBHCD1354645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac97aa52a7cd8168daed2618455cb8d73dc630be339b37ae4e8ed118c60cbd66. 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/GBHCD1354646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52cff2353876f60a7e0db04ae3bbc921750052d1d0d6c3e0526a29742ffa9bd. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBHCD1354650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad702f3267457943afbbc3bc18ef398b5369651c9648593c52af3556990aab18. 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/GBHCD1354651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d4ac5269b0bc981c8f7eb1dd01c8c20c6b475d131c3cc4231baee7f01f5cce. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBHCD1354652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747c888b0b70a3fc20351783cc922df0d79df844e37ff1c0843a5dd31247510d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ESA011303154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7bb8862afe835b7da38c66b794055b1d01795ba9c77d11c8ec8e3a4c0dc4f. 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/QMBZ91390294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aff961954d91f3e08607c855654220e527743bb03ca71b26e4add446e0d3caa. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QMBZ91390295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec7a59a3a9030f198812ec168a62eb2349610ea1c171724364bde3ff10cbb70. 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/QMBZ91390296.
Perlas Cubanas: Canciones en las Trincheras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e519faf856c2f258b93b635640e5d586c17116b00d7c6544299c25fc4d8c508. 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/USV351496845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f293e1340f035c1c8023ecf3873d2251ea18bd265f20dc16074869213dca9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USV351496846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530b87187d7997ad0af305b7bc2a4be59b9334c7c71472a18ade713ff022e0be. 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/USV351496849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc75d95d1748ac7d46b571cf906a9eee20415df04e62436ab132d7222504c8e6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USV351496850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85485d0c5b225a20b53c12c19c0bcdcf9f263b6d5d13a653428ad9979e7491f2. 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/USV351496851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65017084319dfc2728ca5221dd1b288308080645bb6706f354fd8c0d183c2cc9. 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/USV351496853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9983c159c49a68421f91c616e179ab39a7562499e9943615b074d0b02051a690. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USV351496856.
Canciones en las trincheras (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e130f537bffcd1cfc058002ae6ef52ae9643620c9619b7292d8ad6308f62509. 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/DEVU51738384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b262e7afc09051d0cb2b75322c7f936be03af1a80b94c10d8d103bb24caa801. 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/DEVU51738394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc8e7ce22d9285771b0685c68318087de972ad1ac4a07192d5db19f2f7447bd. 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/CA5KR1807325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce25d2242a4861c226f2568aaecd94d3a1c57a82bc1ac05bc1e50edda3d07551. 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/DEUD91856686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe97c42512c287cbc037e20a4bcb0a377a7387e8e11cf771a07d239c54dcf08e. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/DEUD91856687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9014e3138e74ca54c832d68dd1e0baf0305818ff1b2602cf537f7d86840b34. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DEUD91856688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf7cfe72563ef3e0f9f4f8cf2cbc1a71aab8605479355fa72b0ddf04d00581b. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DEUD91856689.
Todo por la Reforma Agraria - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8c0e770f92d4e3354f81b7d4d33dce678e6a8fc281d6dced3af3059a5b1bc1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DEUD91856690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513509e736e2fd975e275e4feceb77dad0f9f9550149f207811e9652c8e20759. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DEUD91856691.
Canto por Todos los Muertos - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a17f1f669f949b236e42ac73f3b6b19de8c17dcca6dec1a9eaa34d03f6d258. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEUD91856692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901167971d7bbbc40bca162324ce872c1b29a30a4b08957d6486f2eed8aa9509. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEUD91856694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefab2834e7585b8a0069936d5b0b5c1552c8f31f60041e82fa767c3251089e3a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEUD91856695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a82e326783aeb11f31c9c818cf2e133463b2debf3fed2333590358832156ae. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEUD91856696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75fb6eb33cc3a9d0534abd0fd187e358738d55073ed42b84193bf4c73a2b5b0. 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/DEUD91856699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d04bb21f8c78a26680581d4908789f306183451931814287ad4f9ed769da9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEUD91856702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc2693ca324ec7fac11e0ae5e58df7a2a53ce31a91be8e028c3bff141e5f0ed. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/MXD941808292.
Essential Classics, Vol. 783: Carlos Puebla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b6eac6ea3ec77456af97fbdc459d4c67d0dee5c28156ba400b812f1e4f42b9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEE791502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfdff5285cfa6cb0bbacd1e78df1a291d9baeec74f84938a050092dc9f1bd22. 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/ESA031423783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835dbfc8c4263913e16da9f0a1c0c825e1604afa22cf6b08c8fcfc080196d1bc. 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/QM4TW1559593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bb198155294fdede8c42458761b508fbb88bec8896a1429a09b60e1b90583c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ARG991010931.
Cancion Protesta: Protest Songs of Latin America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e709d9f5f0e4d404a855618034c3dd35911f620e79872227ea25c7c573b829. 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/USSF17000102.
Diez Seran (We'll Get the Ten Million Tons)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98df9128c455280f68ea34fb620256135b1c172420a485eb71761bc00f74d34. 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/USSF17000103.