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 0xecc094769ec6222c092ca32eb92b82aeb3a833d3f5d057cc22117a723a450467. 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/88e20e97-b79e-4e37-a952-aaf10ffb4b1d.json and https://artists.proofprofile.net/proofs/artist/88e20e97-b79e-4e37-a952-aaf10ffb4b1d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x120e39061a3f3299ef063bffb1536258dd88b34986d7b02acf5e5918ffc36328. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS1969259 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fc73b0b65fcadec12f35ceb819dc7e528bad64a9bf5a9c25195e78033bf58b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ31933083 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7749f80321ae0f2ebd7da0c93c0d16233c3a9469c403754d24060af2e5b805. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ41909718 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad87ee87842fd277783fcb1bbd15a3c51304d678e855bcd64655fa6be3c0bb95. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ41979206 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a819dc5e9beba8d73962fec32345d049bbd22e383ab21d247077cca230df9. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2079664 — a six-check JSON result.
Manguito Chupao / Que Se Vaya Que Se Vaya / Hechicera / La Negra Isabel
Soy Moreno / La Piragua / Bailarás / Morena / El Baile del Pavo / Cuco el Perruco / La Cumbia de las Flores / La Cerveza (En Vivo)
El Tren de Seis / Capullo y Sorullo / A Mover la Colita (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd310c736bb1316e0deadec8956d79229ea67686ea0f8b7e5ed76e67932ad15. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62158055 — a six-check JSON result.
Fiesta/Macumba/Piel Candente/Bala Bala Ju/La Chispita/Ni Juana la Cubana/En las Cumbres de Maltrata/Magdalena Magdalena
Mix Yucateco/Zumba Que Zumba/Pato a la Olla/Sácame a Bailar/Salerosa/La Negra Bailadora/La Guapa
Mix Berenice/La Pruebita/Noche de Cumbia/Tus Ojos/Como Marea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149cb6fe3a79d91335054f3757c67d6dd8fd6d5f6ac85edf9161225624a5309e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2280343 — a six-check JSON result.
Mix Selena 2: La Llamada/Si una Vez/Amor Prohibido/El Chico del Apartamento 512/Techno Cumbia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b59bf91a6d04159728c1d69623cb04d72d55756703c9b485a0e69b6c8c6c29e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2317624 — a six-check JSON result.
Mix Frontera: Un x100To/Bebé Dame/Que Vuelvas/No Se Va
Mix Fiestero: La Cumbia del Garrote/El Colesterol/Me Llamo Raquel/El Diario de un Borracho/Cumbia Sampuesana/Lucas el Pelucas/El Africano/El Año Viejo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab2ebd69bccf99cbbdeb089a2ad2dd3abc32341b3d7f8f80de80c32704c7ae8. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2371530 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052983cfa476207207aed2044c748d3d4d28bceec1fd98e0ce8a8f973a038f8d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2299339 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2654f4eafca846eedee75f869e75e279c7fe129f92fb5487050c9134dd812d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2239321 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab2ebd69bccf99cbbdeb089a2ad2dd3abc32341b3d7f8f80de80c32704c7ae8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2371530 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37406768d47f9c7cba63f1297351c4c509650a713b799efe852abecc396b65a8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2484425 — a six-check JSON result.
Mix Yucateco 2: Soy Moreno/La Piragua/Bailarás/Morena/El Baile del Pavo/Cuco el Perruco/Coqueta/Negra Candela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d136ab5ade467c3d36ccc882b6adbbdd3ce44bfb951b5e02d10e7dcac747c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2435527 — a six-check JSON result.
Mix Rigoche: El Sirenito / Oh Qué Gusto de Volverte a Ver / Matamoros Querido / El Restaurantito / Los Nenes Con los Nenes / Que Culpa Tiene la Estaca
Mix Chocosax: Dulce Amor / La Gallina / El Pachuco
Mix Mujeres de Mi Alma: Yolanda/Carmenza/Susana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a469fc5e3da6705d01b66440b84656a7f5208241fee70f6047c043da255332. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92589449 — a six-check JSON result.
El Baile de las Estrellas Con Grupo Versax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b09458c686e5e45b33afd397e9fc64327ff7ee39302bf711302f5c5f0555547. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2565269 — a six-check JSON result.