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 0x5efcbd0272a258e6de2b6603f745835148d85c227b30cbe64a91856e0872f8ff. 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/bb4e30ea-3d83-4950-a1b3-bcd5a85cf7a7.json and https://artists.proofprofile.net/proofs/artist/bb4e30ea-3d83-4950-a1b3-bcd5a85cf7a7.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 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 0xe34ca0a0820fb9d15b301b5f041f00e675a3d82c54656f79a732846e346298c6. 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/QZ22B2056185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd70ce47fcdd08def0ed332f6fb90d0301108583b7c47a9445eab7541ce24ca7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZ22B2056191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae3e51c961544f3b7afb0a40b489c1d8ac4fa69c014ac2b86367d53b774ec7e. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZ22B2056193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71a34b0b2b12e2bc204b206c46c0c257e4ed971e571d8e7a2daef30bd7509cb. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZ22B2056159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7085907733797a3f1095575979f51a35cac98abafdb33108e0b5fb09ec38b3ec. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/QZ22B2056161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963b70366ce6ca9a41a21fb03b819c7a1986b156d866fc7c9126be7a644ddc12. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ESA011904101.
Mix Sentimiento 1: Llorar Llorar / Idilio / Te Quiero Te Quiero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad54759036644dbdbffc07f0322c31aa45c2bc7cc1bfb6af71f700b7dd937a2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:10Z), 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/USDY42213944.
Mix Super Tigres: Clemencia / Te Buscaré / El Cartero / Te Quiero Amor Te Quiero / Regresa / Orgulloso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a24fb88530fa7cce792e44fe84810c840e8e8f9cd4c135122504b3145cdda3. 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/USDY42213945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9eeb25082233b4e1b17c49eb1e0c98be7f0a4a3eb2f27462ea4d123164ebc3. 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/USDY42213946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c43f6fe77805b7b9b94b5bc78ccbc2690a45542bbcaa31f0dd06392a82aa92. 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/USDY42213947.
Mix Sentimiento 2: Te Vas y No Volverás / Tu Recuerdo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b446a88b5c825651667f52cbe4d39a59c2d976fca67c333e50c4d5dd82d974. 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/USDY42213948.
Tributo a Jose Zelada: El Perfume / Perdido por Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1b2a8f8a3cbc53fcd27cb60b38115d41b55f233fed0f2e9f76ada25d3cca2b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USDY42213949.
Homenaje a Edwin Alcantara (Ya la Perdí / Mentiras / Hay Que Saber Perder)
Mix Super Tigres (Clemencia / Te Buscaré / El Cartero / Te Quiero Amor Te Quiero / Regresa / Orgulloso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02cc05a0bf2e9a205d313c818614762009b5465423afed6ab84b1bf4bc65c3a. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZTPX2208727.
Mix Goza Goza (Mil Botellas/Vienes y Te Vas/Corazón de Piedra/El Amor Es Así)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b59c0ea337a4b1b8a3fb7cff9e290abb89731aed56f7d58ce3b5cd3f94f23a3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZTPX2208729.
Mix Víctima Mortal (Hipocresía / Ave de Paso)
Mix Nostálgico (Nostalgia / Promesas de Amor) - (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14fab374570fa21d24d83c9cbe8e64bb600649890c7a95fdb84984354a4eb0a. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QZMZ92358944.
Mix Estanis 2 (Enamorado Corazón / Ten Pena por Ti / Vete de Mi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e76712fae8c83ed81ad7054e18dc86153cbea6817dbc840449bd88e7c5de334. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZMZ92406660.
Homenaje a Edwin Alcántara 2 (Me Hace Falta Tu Amor / Volverás / Enamorado de Ti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe543d9c20e4209836e2d767a79653e6b6c22160c972368ad715be7ed3cd9e0b5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZW9K2418876.
Mix Romántico (Dejaría Todo / Solo Importas Tú / Por Amarte Así)
Parranda Borracha (Borrachito Solitario / Borracho en las Cantinas / Me Emborracho por Tu Amor / Borrachito Celoso / Borrachito y Vagabundo / Borrachito Feliz / Cumpleaños del Borrachito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007e2481661dd4fc3612b6c2044cddf735c974ee121c3b5441f0d21e8fac4a8. 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/QZW9M2424984.
Parranda del Recuerdo: Aborto / Amada Mia / Trenzas de Oro / Callejon / Primer Beso / Tristeza / Trigal Vacío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6133f12ad9c68a71c279dcbf2da278f737bd5a106c7283350770d1446c50b50. 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/QZW9M2444326.
Mix Sureño (Maldito Licor / Haciendo el Amor / Nunca Me Faltes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2ccf1131b880315e4c381a3238f5755ff460de4f47d7f8331b34bef287baff. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZNJY2504075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824cd690a2af9dec1243d2b67f700477036ea812b9354a3af08abe07bfcb30c8. 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/QZNJY2532092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1e362c936566f7913397c7784f97da76fcce8b9226b749ac55ba2f14b6f7d1. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZNJZ2551551.