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 0x2a5fa8a8996cc9e4ab732e8dfccad724b33c274713702837a3072931cf41f0ec. 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/9ba86618-69ad-4801-8de3-7e18e7394142.json and https://artists.proofprofile.net/proofs/artist/9ba86618-69ad-4801-8de3-7e18e7394142.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popurri Jose Jose: Tú Me Estas Volviendo Loco / Payaso / Y Qué? / Me Vas a Echar de Menos
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 0x0ec0f5bc1503bba5a80dfde669be1451ed3e9b6360d40d583a73f9582196a7cb. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/MXF550809447.
Popurri Angeles: Y Volveré / Esta Noche la Paso Contigo / Vete en Silencio / Debut y Despedida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b1425414f7c9ddb9d0ee772cedc78a669a69f5235018b517eb4ca7f8d4b59b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF550909226.
Popurri Raphael: Toco Madera / Lo Voy a Dividir / Qué Tal Te Va Sin Mí? / Provocación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0723e04caa5020d9c59df15d782256f6ab43a42b5e6229864e996be7044d943d. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:05Z), 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/MXF550909227.
Popurri Ana Gabriel: Luna / Evidencias / Vámonos / Ay Amor!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd39007ef86773c4a8e10167174681eb5688d927b52fc8b200041f16a0491e4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF550909228.
Popurri Emmanuelle: Quiero Dormir Cansado / Insoportablemente Bella / Todo Se Derrumbó Dentro de Mí / El Día Que Puedas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0246dcb041c09ce87aff28662b0469404d83c346581c64688b314b07fb496283. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:43:47Z), 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/MXF551257097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc21f19887eef4a53b12e678e07377632c9b08a695aec8410f45ab2b3988eb7. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/MXF550908298.
Popurrí Ávaro Carrillo: Cancionero / La Señal / Amor Mío / La Mentira (Se Te Olvida) / Como un Lunar / Sabor a Mí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7690bf2a73279dae94c3c6f9a724262bd11db1e109ea70129ffd41c806a609af. 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/MXF550908284.
Popurrí a Armando Manzanero: Mía / Te Extraño / Contigo Aprendí / Adoro / No Sé Tú / Voy a Apagar la Luz /
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc575d59814f88a77676fc5f276cf2e944d9c24c5f942895f476608fd700d072. 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/MXF550809446.
Popirrí a Rocio Durcal: Jamás Te Dejaré / Diferentes / Frente a Frente / El Más Querido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de3a0f2daf21c9398d74c9d75e461c21ef3a2b5777fc0adf4c377bd05059647. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MXF550802688.
Popurrí a José José: Lo Que No Fue No Será / Lo Pasado, Pasado / Gavilán o Paloma / Será
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cdb90560391d30f357c4682104d09f54890a475997d44d78d7e4e974ed6b0d. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/MXF550802689.
Popurrí a Manuel Alejandro y José José: El Amor Acaba / Lo Dudo / Cuando Vayas Conmigo / 40 y 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04f8cf89707aea7707b361769469c94b9375c7ca1745fa53b0e040a094b842d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXF550802687.
Popurrí a Roberto Carlos: Propuesta / No Te Apartes de Mí / A la Antigua / Detalles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca13faa25d1d0e7c57f6eb6c13cbd4cc5b81c3d7497be953637e9bbd8cacc275. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/MXF550802691.
Popurrí Canciones del Alma: Amar y Vivir / Perdón / Desvelo de Amor / Amor de Mis Amores / Campanitas de Cristal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cbf41b493b7c138162dd84ea77f260d9f7723a4f7899ee89fe7fa2f1e87bd4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MXF550908286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc21f19887eef4a53b12e678e07377632c9b08a695aec8410f45ab2b3988eb7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/MXF550908298.
Popurrí a José José Parte 2: Tú Me Estas Volviendo Loco / Payaso / Y Qué? / Me Vas a Echar de Menos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173ac692b4bbc28a15145432d90273ba55825184570442df4e9aa90d912f28f9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:57:54Z), 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/MXF551257096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8d93fa209a2c13a7aad1ea29d4d8bdcccb5f7b6b4a82da3d41f38851e0a093. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:02:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550908295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9176061e8693e4f384dd6a0c0a19722720493f4291014a6b0e1dfa281fdd6c09. 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/MXF550908296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad6f69b8b3c73e2075caf320f85d65f01d1159899b098b9280ff1e49dd7b9ef. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550802662.
Popurrí A "El Puma" Voy a Perder la Cabeza por Tu Amor / Dueño de Nada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998028955150c4519dcdbf55182a42bd5a2ed9a6b4a40bce47e96909eeb6ad29. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/MXF550802692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67091f8beb2d72c1f818654bd02ed026f0192b9edbbe6aa03267330dc57a50ae. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/MXF550802675.