Blanco y Negro ("Black and White" in Spanish) can refer to Blanco y Negro (magazine) in Spain Blanco y Negro Music, a record label in Spain Blanco y Negro Records, a record label in the United Kin
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 0x71483f600ec3a66c2eab1b9d386f39e1e277017128a7917ac2d794bcface85bc. 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/c79d8cc0-002e-4f97-914b-b93dcb2496c5.json and https://artists.proofprofile.net/proofs/artist/c79d8cc0-002e-4f97-914b-b93dcb2496c5.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 0xe52231f2c505c76300ceab2d70f35ae7346fa668311869944f78f5dd08fbaef6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92585703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7837ced807755edce0ef317854093c06fefbbacceaa43d3da683dd30ea89efb9. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZHZ51926634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93e6eed2c4c84ef4c6fe031b3c84e83c9bf5f77cc4365d556f864ea67a05569. 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/US7VG2056644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3682af5597cc6823483ba16a3e6a402866eca7e6ad772ff7ff9ad489b02b2c1. 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/QZHZ62043340.
Mi Querido, Mi Viejo, Mi Amigo (Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd49be4750d32e6e2ace4c06a32e640468d91d08e9f0c6f2602e7a7c2ecd827. 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/QZ5AB2113702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffadaaf7ae91018ab97fe197e617f6a0740622901a43fb0abf82641339f3ab21. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2141416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d83c4e22b91503a6b47ee3a896aa218dbcf68c510dff4fa3e0aaefd3216efe. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZNJY2130093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabea12c6cbefb1536fab5e11208bff49aa657b3437a10329c6b9b533159d014. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZ5AB2249723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af7ae3f9616e285bbe644f3bcafcd4c7f89da5752110deee035d41d573400b3. 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/QZ5AB2249795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefe40fd256ae790c6e1e525171e686e100cd68217e5038b31d6b9bbcfee5205. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZGLM2216328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb0dbbcf546154b7a076c9b816caf722c59efe2202960a38bd400ceb9dd0c5. 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/QZGLM2216411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd721fa3ee9ee905266ecb3c2c2a8e58c9dedcf0206dddf6cfe41d81a76a5c850. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/QZGLM2216567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525c4624f21f3a4da8c3fdb1f0f940a30dd9538d931322b9782e349955cb1f79. 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/QZHZ52258389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2302580f8f3b154b9a7fe4f9b586e5e5dd289e432b249093998a3f7614902211. 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/QZHZ62214095.
Amor Intocable (Versión Bachata Extendida)
El Listón de tu Pelo/Cómo Te Voy a Olvidar/Ay Amor/Entrega De Amor/17 Años/Mis Sentimientos
Baracunatana/La Canoa Rancha/La Colegiala/Pedacito de Mi Vida/Las Caleñas
Cómo Le Explico (En Vivo Desde Premios Telebyn 2023)
Hasta las 6 de la Mañana (En Vivo Desde Premios Telebyn 2023)
Quédate (En Vivo Desde Premios Telebyn 2023)
Viva el Amor (En Vivo Desde Premios Telebyn 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965a400a4d1b081645aa23c1ce6be5fd52641d3c1b01880560ddd7d6edf47137. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJZ2326434.
Bynllancicos: Hoy Es Navidad/El Niño del Tambor/Arre Borriquito/La Rama/El Burrito Sabanero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8739e8f67ce4896c31620841a1973af6308467f900b15e5e234cfabe59071c. 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/QZTVM2328523.
Popurrí Colombiano: La Subienda/Te Aprovechas de Mí/La Enfermera/Mi Bombón
Popurrí los Socios del Ritmo: Besito Loco/La Carreta/Amor de Internet/Llorar/Mamá Cumbia/El Chivirico/Que Se Mueran los Feos/El Alacrán/Que Se Mueran los Feos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daa84bf04fcee538531bb9d7333a158ad2e9cbc27e83c6854c932a935dcbd71. 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/US7VG2426762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9611e32425783ff8308cfbd618c3f2dd26caedd607762df3dae503a43e0ce2. 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/QZ5AB2483925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17b4b5793ff3da36eeca2607484d3304f572f283fea14e7814ba3d17626aab2. 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/US7VG2426744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b04eb302cd7880808dd369ced2e88690594c116fdf897c0e412e7bb30c841cf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2425983.
Blanco y Negro (En Vivo Desde Premios Telebyn 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a006a28d025c31ba24938cc3438a977be05d955a9f2bf282f52305df722cbb1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZMZ92496665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4125fcae8c52b7411ff755a1c1abf51512bbfb2eeb88410f14981547445fb6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZMZ92496632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41738f1755409313ebbd1eac592bd64a43e053c030f84ed3ed5f1d8477173342. 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/QZMZ92492325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aca0c08c86217921cd5beb5d8426369fc84a84f3151caa43bdf1a67853eedd7. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZNJX2491746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553053b5905f70ee02315abb615dde36591d0c533102c07726ae6dadefe67d71. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNJY2472436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43b55185cede2666e57b7379f108b2bc7942b9cecdb6d606a133feb5843545d. 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/QZW9K2429218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561babce986cb24aead14576d0b6fb570ee79ce995c211481ac3be190d424ae6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2479737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7169d37ceaf66e00d9e0cd6bf820897bf23577fc7a1e241e0bea48b4942fa4. 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/QZW9M2423950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb829dcffd50d43714f66368d7d2de0f03b29f0c77c79d9e652f3f6315ccd62b3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZGLM2589575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f65574bfcc595ee14049c6b6b365776bd3bdf3372ed7f5161a00ce6858f2f83. 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/QZGLS2551846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f35ea6d87b65e3e378698f6a96b054673660e2d3f2af9dcc5fab551a9f082fd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZMZ92533361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f525bea0a56f5a03c1a99e094c4d80448512916a5004f74bb445187dd764b8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92515983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2111a733daaf28c6cdbef666aae65a850cb139526e0990024ff070f9cd5c5447. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZMZ92515987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb8539acaf030382e30bf698bb8772d57ddc2a0b07f6e1c27ff5c1c4a9cced7. 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/QZMZ92589413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d1993c1f3ee5d174248b712db680bfe7a80deb1f1bf145db56078595777a3. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZMZ92589410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b04542cc06b022135c0dd5ffade695a3cfb3075f4f8c08eda131e1af4c6447. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJW2584252.
El Baile de las Estrellas Con Blanco y Negro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7723eeb27b0a2329e38ce2ce15b4a92cbd6bb844c47de173a06918f147e47cdd. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNJY2537485.
Tropi 46 (Colombiana 3): Eres Mentirosa / Nuestro Anillito / Cariñito Sin Mí
Tropi 46 (Colombiana 3): Velludita / Yo Me Llamo Cumbia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd181c8fcd4f1c42cedecd12851073233658772597164abae8bc24c1488eb69. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZNJY2564829.