Roberto Blades (born Roberto Bellido de Luna) is a Panamanian Salsa singer. His most popular songs are "Ya No Regreso Contigo", "Lagrimas", "Poquita Fe", "Casco", "Detalles", "El Artista Famoso", "Vic
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 0xbe7be916fc927d45d170410e50b3d6c69c96e71124db618e210b22fcb4610cd4. 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/e63ee8e0-37dc-4ade-ad8f-4eacf723bc8b.json and https://artists.proofprofile.net/proofs/artist/e63ee8e0-37dc-4ade-ad8f-4eacf723bc8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e9f14eed76378eb4bf05329b96151428263a1e692df8c3db345bc1950644b3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:06:00Z), 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/ESA122483517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1c447157e9294b8649edb33450429f96f7aaff88a1cdcfa0adace136474132. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USZZR1300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883d07e16110e0760ca51c87fbb91a4e8fa66ae6d06c14680a5db3342037f3e9. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USJ3V2069938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ff194b934e7d3d91893345249273377f41abaac513c8a815289e1b666d4c31. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNJW2368274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c821952924c0d550ffc5f93676249e290799a470fc7bb4251974bf6b6f3a04. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNJW2368272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3b470e7ad30906520ce1245777aef075c384467a3723f2878d1657b76921c0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNJW2368276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5960fb5f70f589aad4fefa17fe665e25ee6c8102541398f2035b2caed5cc273b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:07:25Z), 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/QZNJW2368279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cd547254bbd1b30ef4a848a7e4bb9e980bdeaa8be6f7c5953e8b4ead94ebf0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZNJW2368278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f8d1735e5f08f8ca82913b3fcdb1a4af724637414a8ad5b15848b8695c21a9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNB2546127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b17d069c3f3a72efc7bde8c7c19a41b4a02071dec229ee7e23b67ab91a84808. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHNB2546128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d761605b5cb33f2069f87efecd9ec7a95434dfecb168ff282077ffb928e9396. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZTB42520354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8694ffbbc747d09bc2980815c52f731c87710ba9ac40b9a6257665a7181bd021. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:35Z), 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/QZTB42520356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212ceeb076a1eb0a422e74ef45de1425ca5c824f0ecf50d656bed7a43e2edc7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB42520357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6948be1f8390900a8217c80b3068dc7f08347f930ebfef07e9785635aaa3679. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTB42520358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23938b1f9b003327fece3af72c0be6cbf50b21634ab0bdbe1b90d798ad1fb134. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:24:24Z), 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/QZTB52586328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1c447157e9294b8649edb33450429f96f7aaff88a1cdcfa0adace136474132. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USZZR1300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396ce4a9a2a372e4097b5502ebb64bfa530bfcc2b9028ab917090c0ee08642f1. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/USZZR1300555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a418d0897917ecc0de277e15a4172333b3e2e1f0acd0843fed559da25eea67. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92505680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d93b3b6cce8277bb8519655ec6d87bc44fd5a9d07c8a98e180623cf0fb4f5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:43Z), 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/QZTB92505681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206641a01ce89854005f4a66918e2a7e15df43a81735e9057895e5aeba7f199c. 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/QZTB92505682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae1ff75b92c98990880b13b56c8892a288b23731171f5b643e452b629dec2e0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92505684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03530ebef96145e518e5ca0b96ac6acf40222a72ce77d6ac6109a140c92b5c48. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USCGH0582667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b17025f1f1b385c7b123d335b8dfd3e8716c8720ea45455390e3d3b8d52c9fa. 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/USCGH0582673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38237aabfcafec92be61c81d59f959664f67c0448510e953a73159080d70a24. 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/USCGH0582679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569943fe67346c85f62a352a029a66cc7e83e6069a76275cfb2b2a3e112a5220. 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/TCAJA2443230.
Guaguancó Africano, Vol. 2 - JSTJR Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd605ae69bd3c4fd4a9aa602a78758747fcd8ddd90efaa7cf102a6027386ef46f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USDBB1600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85653b32358d23d570685a98d029d45438f422c59279ff9dddf94fe0f4b32ccd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGLM2416668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4b628b0b56b235a6a5eb2f4c52249156525b940f8d5e142ed6cea58f72d39d. 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/QZW9N2262029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f4d647c152e5ccf47299f2c00ef25de9b67e21b9c1bf64d9b001e42d97c792. 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/QMFMG1594099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c311cfafced9248a862af28206d6098aab0149a103c30075184a5bd805efb57. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USCGH0582674.
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 0x978761df2b4ecf7431b46d8946db278a9c277711d7929c590239e92f37567e1c. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USCGH0582676.