1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4af761c44f8c137ba4bd6d4443ca6238c8b42015046bc96f48565413c5e167ed. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4f49e70-b0c3-4164-be45-571c7fd9ba46.json and https://artists.proofprofile.net/proofs/artist/d4f49e70-b0c3-4164-be45-571c7fd9ba46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b752660a96e39fdaf534a99de84f3a42c1296e222c565eb34967554820b2e99. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zGqdm3UcCjy1crKuCVoDI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zGqdm3UcCjy1crKuCVoDI.
{"copyright_id":"0xd848abb25b2c285fa5ad1daac308dd72c4e9c908b1faeb4d42330139505fc9c2","isrc":"QMFMF2102155","name":"Zenaida Ingrata","registered_at":"2026-06-28T05:32:49Z","spotify_id":"3Jr1LvK3UmvaI21KwXqFL3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd848abb25b2c285fa5ad1daac308dd72c4e9c908b1faeb4d42330139505fc9c2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Jr1LvK3UmvaI21KwXqFL3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Jr1LvK3UmvaI21KwXqFL3.
{"copyright_id":"0x9b1944a4033bdc3cf3663abd494830d88ec0e2109afc9174dcf26887d5045377","isrc":"QMFMF2102161","name":"Palomita de Alas Blancas","registered_at":"2026-06-19T23:10:28Z","spotify_id":"47L2pffH3Ggcg9cmTYvng6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1944a4033bdc3cf3663abd494830d88ec0e2109afc9174dcf26887d5045377. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47L2pffH3Ggcg9cmTYvng6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47L2pffH3Ggcg9cmTYvng6.
Megamix - Corridos Que Dan Sed - para Que Me Echaste al Mundo/La Eché en un Carrito/Las Cantinas/Zenaida Ingrata/El Hijo Ausente/Me Voy Muy Lejos/Elenita
Megamix - al Seco Viejo - en las Cantinas/aceptaré Perder/Que el Mundo Ruede/Lloras y Lloras /Mi Buena Suerte/El Último Trago/Palomita de Alas Blancas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46672adbb489398bcc6035f127f5a0a990a22e98af20049472e7b80300ce4b5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1jkfSoN0c1s8n8Tx66KvDc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1jkfSoN0c1s8n8Tx66KvDc.
{"copyright_id":"0xd8b8d65d3cb62d4a4f7df839c1b78e8787aee83ea0675dec02e5ba0833a1a47f","isrc":"QM7282073567","name":"Las Penas de Amores","registered_at":"2026-06-28T06:35:10Z","spotify_id":"6JSxekcO75VSQSTPVKR9XS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b8d65d3cb62d4a4f7df839c1b78e8787aee83ea0675dec02e5ba0833a1a47f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JSxekcO75VSQSTPVKR9XS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6JSxekcO75VSQSTPVKR9XS.
MIX Exitos Inmortales el Gallo Pelao: Estas Fallando: Pero Raquel: Como Caramelo de Limón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1f654ad0547f8f8b29ade75b337a7538b284bc73c7d0dabc0471347326ae1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4pqLr210x90VmcYxpG8XrO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4pqLr210x90VmcYxpG8XrO.
MIX - Tributo a las Reales de Plata: La Fiesta de Carolina / Las Muchachas de Granero
16 Megamix - Romántico: Como Te Extraño Mi Amor / El Taxista / El Perro, El Gato y Yo / Te Ves Fatal / Como Te Va Mi Amor / Hechizo / Ahora Te Puedes Marchar
{"copyright_id":"0x21576e55b2fc69176b57d20e8af65eb19d3d773f31d86b9d98cc1ac31625d6e2","isrc":"QM7282073580","name":"16 Megamix - Romántico: Como Te Extraño Mi Amor / El Taxista / El Perro, El Gato y Yo / Te Ves Fatal / Como Te Va Mi Amor / Hechizo / Ahora Te Puedes Marchar","registered_at":"2026-06-25T06:28:36Z","spotify_id":"1hKnfCo3QCtW55lFYve5ee","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21576e55b2fc69176b57d20e8af65eb19d3d773f31d86b9d98cc1ac31625d6e2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1hKnfCo3QCtW55lFYve5ee.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1hKnfCo3QCtW55lFYve5ee.
Megamix - Bailable: El Gallo Pelao / Pero Raquel / Como Caramelo de Limón / El Carretón de Bronco / Las Penas de Amores / Cariño Necio / Por Esa Yegua / Medias Negras
{"copyright_id":"0xf04e95cf6ec647f563d115f7436cca58ce1515882ef8d7978358edf0e196c0a2","isrc":"QM4TW1719495","name":"El Perro, El Gato y Yo","registered_at":"2026-06-09T05:42:56Z","spotify_id":"1fyXmTfLukMSuVDbx5OYzg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04e95cf6ec647f563d115f7436cca58ce1515882ef8d7978358edf0e196c0a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1fyXmTfLukMSuVDbx5OYzg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1fyXmTfLukMSuVDbx5OYzg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1350de2924b7687610cde10abbfd0c7c7262a46188f5bfc6c212b45cd966814. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Ar8KocCVvGS4arGjY10gJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Ar8KocCVvGS4arGjY10gJ.
{"copyright_id":"0xda643de7e7d6282573b3b9d298baa9feb0a275edc9b0f1f1a7184afab977ffd9","isrc":"QM4TW1719497","name":"Como Te Extraño Mi Amor","registered_at":"2026-06-06T15:13:19Z","spotify_id":"6praYKd333aC1iTuseDAHa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda643de7e7d6282573b3b9d298baa9feb0a275edc9b0f1f1a7184afab977ffd9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6praYKd333aC1iTuseDAHa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6praYKd333aC1iTuseDAHa.
{"copyright_id":"0x5a3f62831f89ee1355ebfbaa2a5e7551a927b6e184f97bd649db124fe423c480","isrc":"QM4TW1719498","name":"Te ves fatal","registered_at":"2026-06-28T05:31:36Z","spotify_id":"3zASOPXnbJihPCIcJpDQIF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3f62831f89ee1355ebfbaa2a5e7551a927b6e184f97bd649db124fe423c480. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3zASOPXnbJihPCIcJpDQIF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3zASOPXnbJihPCIcJpDQIF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47224c37712f0126ef093086012e082e6cde5cddaa34acb7e31d548c726e87dd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/58Kwp146Il713J4xbAWQMB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58Kwp146Il713J4xbAWQMB.
Megamix: Que Alegría Me Da/No Meta las Manos/El Carrete
{"copyright_id":"0xa4c1ad972d8df6f6918a86b3ff7dd860b754172f7284c3713fef507c06277035","isrc":"QM4TW1719501","name":"Megamix: Que Alegría Me Da/No Meta las Manos/El Carrete","registered_at":"2026-06-09T04:12:00Z","spotify_id":"5LpJO2pqmT13hsKFUFwmRR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c1ad972d8df6f6918a86b3ff7dd860b754172f7284c3713fef507c06277035. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5LpJO2pqmT13hsKFUFwmRR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5LpJO2pqmT13hsKFUFwmRR.
{"copyright_id":"0x3476eabf2b5d20362762bda51cdcbb2a700c8197fbc147941f43e43cdaae36fc","isrc":"QM4TW1719502","name":"Disculpe Usted","registered_at":"2026-06-11T02:15:42Z","spotify_id":"2NgSqA3qpHHvXLJUVGpX6l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3476eabf2b5d20362762bda51cdcbb2a700c8197fbc147941f43e43cdaae36fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NgSqA3qpHHvXLJUVGpX6l.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NgSqA3qpHHvXLJUVGpX6l.
{"copyright_id":"0x7bea4c0a5752b1bb78d35b1e59a30437fca49748ffd12244fb43cc5a7a1ae1db","isrc":"QM4TW1719503","name":"Vestida de Color de Rosa","registered_at":"2026-06-25T06:25:42Z","spotify_id":"41e9GwlgNpNypBlgVnLCiG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bea4c0a5752b1bb78d35b1e59a30437fca49748ffd12244fb43cc5a7a1ae1db. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/41e9GwlgNpNypBlgVnLCiG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/41e9GwlgNpNypBlgVnLCiG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c5a1bafba927b338143dc495753b6ac4051714e8d7cd6dbc809038eae2e0c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/49QSFLlK07CHfMfvr6YQfl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/49QSFLlK07CHfMfvr6YQfl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3f020f5532190d0cb21b26ba8e2ebdb57b52c810763fd769871fc4356dc695. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IIbRPVF0KYsTswZ6rLisW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7IIbRPVF0KYsTswZ6rLisW.
{"copyright_id":"0xa206b529e77d6751854507add4f53b424a1c4fc48026de9ea432d6f846f57ab2","isrc":"QM4TW1719506","name":"Como Te Va Mi Amor","registered_at":"2026-06-04T16:15:21Z","spotify_id":"3wUzYtWsQCFhsMAyVFOhrY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa206b529e77d6751854507add4f53b424a1c4fc48026de9ea432d6f846f57ab2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3wUzYtWsQCFhsMAyVFOhrY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3wUzYtWsQCFhsMAyVFOhrY.
Megamix: El Carrete/No Meta las Manos/El Perro, El Gato y Yo/Como Te Extraño/Como Te Va Mi Amor/Te Ves Fatal/Medias Negras/El Columpio/Por Esa Yegua
{"copyright_id":"0x13c2756be292c6ec55db6cdb480f66d637ff5cfc2a3afa07051ba921bc441a29","isrc":"QM4TW1719508","name":"Megamix: El Carrete/No Meta las Manos/El Perro, El Gato y Yo/Como Te Extraño/Como Te Va Mi Amor/Te Ves Fatal/Medias Negras/El Columpio/Por Esa Yegua","registered_at":"2026-06-06T15:12:04Z","spotify_id":"4fT56fOdEM0tHiXYRiCeo5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c2756be292c6ec55db6cdb480f66d637ff5cfc2a3afa07051ba921bc441a29. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4fT56fOdEM0tHiXYRiCeo5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4fT56fOdEM0tHiXYRiCeo5.
GRACIAS AL SOL (Have You Ever Seen The Rain?)
GRACIAS AL SOL (Have You Ever Seen The Rain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e0c673e7ba9190316b3026294be7101cce728d3713840d81338f17e313fab1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Zh8ZpBFRe8OBSNdxTY4VG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Zh8ZpBFRe8OBSNdxTY4VG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d7b31fbe4c06e4afe7f790bc2e9ab207f84e3e35cd502bc7ae5716bd64677a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Eyu9MSZ4pb29Y6oLMv01B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Eyu9MSZ4pb29Y6oLMv01B.
{"copyright_id":"0x9f5fa111585667a6c5f12c2bb6ebf578a0fcb926a0e8640bbf8683910cb9b20c","isrc":"QM7282020670","name":"En las Cantinas","registered_at":"2026-06-19T04:21:22Z","spotify_id":"119sdfjLdMUYwDenaxhcjF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5fa111585667a6c5f12c2bb6ebf578a0fcb926a0e8640bbf8683910cb9b20c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/119sdfjLdMUYwDenaxhcjF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/119sdfjLdMUYwDenaxhcjF.