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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca35ff4b0860a36963834c370001404869cb5cb86a13ce37f7e15f8dea1616fd. 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/c2865a0e-c801-4156-b7ec-1ae879772be2.json and https://artists.proofprofile.net/proofs/artist/c2865a0e-c801-4156-b7ec-1ae879772be2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5561e8c3710f2b1df3d4d6a5b242bad03beb86b0f2cada7581500f7801d583a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR59R1909692.
18 Libras / El Afro / Todos Hablan, Nada Saben - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97378f1e0bf9ad5c2a683bbe371f2407054d328f485a15bcbd8b745bd564cb7a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/FRX281972572.
En Vivo Desde La Mina San Bernabé (Puro Zacatecas)
En Vivo, Vol. 3 (Desde Salinas De Hidalgo, San Luis Potosi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ceee89afc27d445593b92bc3367a26a5c8444eb909c9519d19a9ccc701776b. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/FRX872112246.
Pídelas Pistiando (En Vivo Con Acordeón) [Puro Zacatecas]
Los 3 de Zacatecas/ El Molino / Clave Privada/ El Tarasco - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ac581b4f5d4ce3bafbabd46e119ce3efdc2dedc6b7a56a342380d8f92d478f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:32:13Z), 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/FR10S2291191.
Rancho Alegre / Bandolero (Puro Zacatecas Y Sus Amigos De Mazatlán, Sinaloa)
No Lastimes Más (Puro Zacatecas Y Nuestros Amigos De Mazatlán, Sinaloa)
No Lastimes Más - Puro Zacatecas Y Nuestros Amigos De Mazatlán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7114aa5c0b87ef4a472614d8b8621ba3ee21d556fd3879c6c8d9af8b9eeb3cf4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR59R2211305.
Los Plebes Atrevidos (Puro Zacatecas Y Nuestros Amigos De Mazatlán, Sinaloa)
Las Rejas No Matan / Pase y Pase (Puro Zacatecas Y Nuestros Amigos De Mazatlán, Sinaloa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b99bd0f767f1049263bf793aa4ecbe9b67dac06401cbe7b0f653466c4a152d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX452232239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d2a89d2ce6509812c2a9d0388a2e7bcc2866235ee1ea2f4ba8f7307c6b9b6c. 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/FRX452236241.
Fui Tan Feliz (Puro Zacatecas y Sus Amigos de Mazatlán, Sinaloa)
Pa´ Nuestra Gente Y Por Nuestra Gente (Puro Zacatecas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bc24cb36b0a52218afd46574563834647b7480e5c7c70f11656e896a62feac. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR10S2345419.
Popurri Zapateados El Coyote / Los Viejitos / Juan Colorado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb6922fcb6f60204917d1735d2590fde6dab8008eee4a9779a55ef322e9e985. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR2X42373839.
El Corrido De Chuyín Hernández (Puro Zacatecas)
En Vivo Desde Guadalupe Zacatecas, Vol.2 (Puro Zacatecas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4198a2972897d8ff2d83256ed0f4adac07068367bc2a94cd4de06fb21f69e5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:02:03Z), 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/FRX202375235.
Zapateados Al Estilo Puro Zacatecas - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fecd7c7b8f7be6f26559a3095e0942f131e32ec0801368d2f7701fb3379b76. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX202375236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc0bf2b850aa950b1dd1f138b607fcb962b5c38dc375dc15c945a398c2e4520. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX202375237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375aa7be3a03163716ce2fa0a0ce4394517ad523c4a7799bdf35f955d6a51901. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:25:45Z), 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/FRX202375243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9082ef76c47cefbf813d0046a71b686fe265876608f220049661d31b6a1a6172. 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/FRX762331775.
El Chuma / Viejo Paulino (Pupurrí de Corridos)
Hazme Olvidarla & Una Vez Más (Popurrí Conjunto Primavera)
Hazme Olvidarla & Una Vez Más - Popurrí Conjunto Primavera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef747748356332e4f1d6da8f1e1f012e187194ec340d8fad67ef2321fa7be2b0. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DGA052368566.
Cuando Nadie Te Quiera / Debajo De Los Laureles
Para Impresionarte (Desde Mazatlan Sinaloa, En Vivo)
Para Impresionarte - Desde Mazatlan Sinaloa, En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693c4941334a8a33cabf7d6e2a1c356ff95e34a555fe1020484aa1f0208b30ee. 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/DGA062337965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe88e3b6fc10a99d55a18156808d573cf45aa283bf975239cdf6356b2625159. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA062354041.
Las Dos Hectáreas (En Vivo Desde Mazatlán Sinaloa)
Las Dos Hectáreas - En Vivo Desde Mazatlán Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1785c5743c458c0e13eb925272fd85866bc05eb30665b5f527f04f49b014ba23. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA062389775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3a91d6c1d8f90d084b3b766b9cccb495d42c9498aa6b6095d0d0233a7365d7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA092309578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618cf267ba5afe896106a897f3e10b4e2e103aa004f9827929f9396ec62bbc51. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA092309562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a9902d771101736e4510a08bf4516174c6ae3e6bbadbbbea4090d8ccf709db. 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/DGA062389778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f4bcabc829e81ce5cc9e4c71658524497a5f6a1ef5b2b5f4fc47504d3dfe61. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA092309557.
Que Viva La Revolución (Puro Zacatecas, En Vivo)
Navidad 30 Treinta (Santa Claus Llegó A La Ciudad / Navidad Navidad / Llegó La Navidad)
Zacatecas y Sinaloa Juntos (En Vivo Desde Santa Anita, Villanueva, Zacatecas)
Pisteando En El Rancho (En Vivo Desde Rancho " Los Dos Compadres" Calera, Zacatecas, México)
Viva México Popurrí: Marcha De Zacatecas / México Lindo Y Querido / Flor De Piña / El Viajero / Pelea De Gallos / Juan Colorado / El Sinaloense / Guadalajara / Cielito Lindo (Puro Zacatecas)
Cruz De Madera / Te Vas Ángel Mío (Puro Zacatecas)
En Vivo De La Colonial De Jerez (Puro Zacatecas Carril Lienzo Charro)
En Vivo Desde Carril Lienzo Charro La Colonial De Jerez (Puro Zacatecas)
Pudimos Haber Sido Todo (Puro Zacatecas)