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 0x394b4dcc3b8e70ce5161ba66e9eba5f0b8b0d5bec04c1f8662f905bed5b320b6. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/371751fd-f6d2-47b7-9465-af12cfd85b16.json and https://artists.proofprofile.net/proofs/artist/371751fd-f6d2-47b7-9465-af12cfd85b16.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Base de Rap Callejero, Vol. 1 (Instrumental)
Bases de Trap-Rap, Vol. 1 (Instrumental)
Bases de Rap Triste, Vol. 1 (Instrumental)
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 0x921ddec88597e5343c0e3bc5940246bf443d5a4845f59352035a35643996e7a9. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC1945419 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41baedbc2747510677d6b56e6aafbe98c6016afd50153bea0c39722919fba480. 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/QZHNC1945420 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15369d837f5c9822c500dc43fb9cc33a6c8f321dff9ba6933fdea5bf64a48a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC1945421 — a six-check JSON result.
Pista de Rap Con Coros Callejeros, Vol. 1
Bases de Rap Underground y Callejero, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39c5652d581a6844334ea5de6c06609eb105526395646892644b476bea89574. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZK6P1954050 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363083ddab3997d4a9cb540502e88e58a298e0866195ee65edb24bdd083bf745. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P1954051 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e71bf1c91c0b6968e427bd2b37acb3cd4482260c63c48b56688f6e09f95324. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P1954052 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233b1048b5afcb4aa1848e414e2f0e7c1cad869d5b94df880785fc518a2ff192. 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/QZK6P1954053 — a six-check JSON result.
Base de Rap Callejero, Vol. 2 (Instrumental)
Bases de Rap Gangsta, Vol. 1 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4168976feed4eec1b44a92cfcc2aa3e8a91a3a63003273dfcfc580ddbd242011. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2027888 — a six-check JSON result.
Bases de Rap Triste, Vol. 2 (Instrumental)
Bases de Rap Para Improvisar Con Amigos (Instrumental)
Bases de Rap&reggae, Vol. 1 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e5f21a1f9790c9f385b15b537f74268c05331775a691ed8434755a813b338e. 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/QZHNB2097405 — a six-check JSON result.
Bases de Rap Underground y Callejero, Vol. 2 (Instrumental)
Instrumental Hip Hop & Rap (a Sad Christmas Without You)
Andamos bien lokos (Regional mexicano tumbado)
Barrios de Sangre (Instrumental Beat Boom bap)
Dinero Y Fortuna (Base de Rap instrumental)
Mi india hermosa (Norteño Banda regional mexicano)
La troca Mamalona (Instrumental Hip Hop)
Soledad Endemoniada (Instrumental Beat boom bap conciencia triste)
Aqui no hay miedo (Instrumental beat rap reggae)
Trap (Mafia Trap Gangsta Underground vol. 1) [Instrumental Beat- Mafia Trap Gangsta - Underground - vol. 1]
Bases de Rap Belico tumbado (Base de Rap Belico Tumbado)
Me vale verga (Base de Rap Regional Mexicano belico-tumbado)
Me vale Madre (Base de Rap mexicano Belico Tumbado)
El belicoso (Instrumental corrido tumbado)
Te Falle mama (Re Masterizada - Instrumental Con Coro)
No me Gusta mi vida (Instrumental Beat Conciencia - Boom Bap)
Vaisa en melodía (Instrumental Beat official Rap mexicano - Remik Gonzalez)
Trap (Mafia Trap Gangsta underground vol.2) [Instrumental Beat Trap]
El mariachi belico (Instrumental beat / Regional Mexicano belico)
Macabelico (Instrumental Rap - tipo comando Exclusivo)
Dangerous (Instrumental Beat Gangsta type 50 cent)
Arre Viejo (Instrumental Beat Rap/Reggae - Belico)
Cuidame de los envidiosos (Instrumental beat rap/reggae - estilo mexicano)
apocalipsis (Instrumental beat Boom Bap - Rap Conciencia)
El barrio se puso belico (Instrumental beat tipo makabelico)
El Mexicano se puso belico (Instrumental rap - tipo comando exclusivo)
Preparados pa la guerra (Instrumental Rap - belico - tumbado)
La cosa no es como antes (Instrumental Rap belico-Tumbado)
A mi Manera (Instrumental + Coro Tumbado)
Son of a bitch (Instrumental Hip Hop/Rap Underground)
Tirando mis mejores Rimas (Bases de Rap Underground para Improvisar)
addictive shit (Instrumental Hip Hop/Rap Underground)
Boom bap is my fucking addiction (Boom bap Instrumental Hip hop - Rap)
Sonido Belico 24k (Instrumental Rap belico)
El Mariachi belicoson (Instrumental Rap/Trap/reggaeton)
Apunta y dispara (Instrumental Rap - Hip Hop)
El dia que muera (Instrumental Hip Hop - Rap - Conciencia)
Positive vibe (Instrumental Hip Hop / Rap / latino)
Sonidos Belicos y Peligrosos para dedicatorias
Orgullosamente Mexicanos (Instrumental Hip Hop / Rap Tipo Regional Mexicano)
Viva Mexico Cabrones (Instrumental tipo rap regional mexicano)
El Mexicano no se raja (Instrumental tipo Rap Regional mexicano)
Jefa no soy el de ayer (Instrumental Hip Hop Con CORO)
Mexico, armado y bandido (Instrumental Hip hop Mexicano)
Felones y tumbados (Kumbia Rap Mexicano)
Mexicano hasta la muerte (Kumbia Rap Mexicano)
El Mexicano Nunca se Rinde (Kumbia Rap Mexicano con Banda Sinaloense)
Orale wey (base de rap con banda tipo regional mexicano)
Patrullando el area (Base de Rap Mexicano / Tumbado / belico)
De Sangre Mexicana (Cumbia Rap Mexicano)
Somos Guerreros (Instrumental Hip Hop Agresivo)
El cholo belico (Instrumental tipo comando Exclusivo)
El Pirata Belico (Instrumental Belico tipo dedicatoria)
Un cholo pensamiento (Instrumental Kumbia Rap)
El Chino pirata (Instrumental Rap - Reggae)
En la mira (Instrumental Rap - Reggae - Belico)
Freestyle Belico (Instrumental Hip Hop Belico)
Matando a todos (Instrumental Freestyle Tiradera)
Jaque Mate (Instrumental Agresiva Malianteo)
Plata o Fuego (Instrumental Hip Hop para Improvisar)
Elovrga (Electro Dance Regional Mexicano)
Alucin (Instrumental Techno Corrido Tumbado)
Peligrosa como glock [(Instrumental con Coro) - La mas bonita del barrio]
Hasta la muerte (Instrumental Beat Rap & Reggae Type El Comando Exclusivo)
Bien Alertas (Instrumental Hip Hop - Rap - Malianteo)
Mi Dia ha llegado (Beat tipo el Comando Exclusivo - Makabelico - Guitarra)
Peligroso (Beat tipo Malianteo - Epico - Tumbado)
Humo (Instrumental tipo - Corrido tumbado - Reggaeton)
Desaparecidos (Instrumental Boombap con guitarra Triste)
Rompiendola (Beat tipo el Comando Exclusivo - Makabelico - regional Mexicano)
A mis Espaldas [(Beat tipo el Comando Exclusivo - Makabelico - Malianteo]
Escuadron Belico (Beat tipo el Comando Exclusivo - Makabelico - Belico - Tumbado)
El Muchacho es Belico (Beat tipo norteño banda rap - Regional Mexicano)
En el Jale (Beat tipo el Comando Exclusivo - Makabelico - Malianteo)
Activados (Instrumental / Corrido Tumbado / Regional Mexicano)
Los mal portados (Instrumental Reggae Rap)
La Vida da muchas vueltas (Instrumental)
Soy de Barrio (Base de Rap Instrumental)
Malditos (Base Rap - Reggae Instrumental Callejera)
Asesino en Serie (Base de Rap Terror - Instrumental)
Mama me lo decia (Base de rap triste Freestyle)
Enchamucado (Instrumental Cumbia Rap corrido Tumbado)
Cumbia Malandrosa (Instrumental Cumbia de Barrio)
Vida o Muerte (Instrumental Hip Hop Guitarra sad - Rap)
La encomienda (Instrumental Cumbia Rap Malandro)
El mas Pinche Ondeado (Instrumental Cumbia Rap Malandro)
Cumbia Makabelica (Instrumental Cumbia Rap malandra)
Mama no regresare (Instrumental Trap Rap con Guitarra)
Les Cala Como Soy (Instrumental Cumbia Rap Tumbada)
Naci belico mama (Instrumental con Coro)
nadie me apagara [Tumbado Regional Mexicano (acordeon)]
Bla Bla Bla (Instrumental Hip Hop Rap Tumbada)
Belico y de Barrio (Instrumental belica tipo west Coast)
Blindaje (Instrumental tumbada - belica - barrio)
Cuidame de la Envidia (Instrumental Trap Rap halloween type)