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 0x85cf38760edcbdaf7e1c452ab21de9bcb5b5253dd30dfa09f734c8402da4c027. 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/803b7b07-b983-42b0-9304-82d045025daa.json and https://artists.proofprofile.net/proofs/artist/803b7b07-b983-42b0-9304-82d045025daa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Cantando Con Tequila - Lo Mejor del Mariachi
Éxitos del Mariachi Garibaldi y su ballet
Cantando Con Tequila: Lo Mejor del Mariachi
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 0xc818823d9ec747c787387acd5857366a35c5e47840b7e72b29ebbcf9ce3cd937. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019500240 — a six-check JSON result.
16 Cumbias Famosas Con Mariachi: la Movida Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9c7e653685b0b49745502f022f97e723496cdcf74cf996fadb269a7f01a996. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804940 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820ce89700ba574f68c8b616f88ee3107fc96030a09403ed23afde9ec4b7e1f7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804933 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e21023cb731c6f3349e86bd0ddfa43a3492f737fb0d9dbf01e928c58bcd2b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/COF019804934 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644303a7b746dacecd5d38a9f62592762586aba72818670b029fb9e7d0a41ff3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/COF019804932 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d78b2cdb1197e9b85b95ca5db910940871d94fea8fca783096675945d95cadc. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804935 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf984d979b66c3ad1aabbb1d33063a739111d629ec1de16dafd592475f693962c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/COF019804943 — a six-check JSON result.
Música para Despertar los Sentidos. Rancheras y Corridos (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbf7261012d94701695f1c81c871d7ae8c89d7ffd705052eca59aaa69f2d5f4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019501394 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11f71aac058822ee287a7b65e3c3422f919cf7544f8bd9a21236bb342bfdfa6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019501398 — a six-check JSON result.
15 Pistas para Cantar Como - Sing Along: Alejandro Fernández
15 Pistas para Cantar - Sing Along: Pedro Fernández
15 Pistas para Cantar - Sing Along: Exitos Rancheros, Vol. 2
15 Pistas para Cantar - Sing Along: Exitos Rancheros
15 Pistas para Canta Como - Sing Along: Vicente Fernández, Vol. 3
15 Pistas para Canta Como - Sing Along: Pepe Aguilar
15 Pistas para Canta Como - Sing Along: Javier Solis, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab285546a5b2dd9f6ca7a29dd5435b89ae291a5c6b681bbe4c3d50396cd3e8f. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/COF019401189 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e601b957634fb545e4286e1fefb7d5ae2954506460284ebb15f7d963c3c5ee. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COF019401190 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdff48a0f7cf42da4b9a6c7a8cc8fd759f7bc05bc1391270d47fadaf8602ae8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019401191 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437b6802a4a1ab944017d747c95eedc0ccfa8669534b39924fd38bbb4ff334a0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/COF019401197 — a six-check JSON result.
15 Pistas para Cantar Como - Sing Along: Javier Solis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc818823d9ec747c787387acd5857366a35c5e47840b7e72b29ebbcf9ce3cd937. 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/COF019500240 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e21023cb731c6f3349e86bd0ddfa43a3492f737fb0d9dbf01e928c58bcd2b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804934 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d78b2cdb1197e9b85b95ca5db910940871d94fea8fca783096675945d95cadc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804935 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf984d979b66c3ad1aabbb1d33063a739111d629ec1de16dafd592475f693962c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF019804943 — a six-check JSON result.
Canta Como - Sing Along: Vicente Fernández
Canta Como - Sing Along: Pedro Fernández
Canta Como - Sing Along: Antonio Aguilar
Canta Como - Sing Along: Alejandro Fernández
16 Pistas para Canta Como - Sing Along: Antonio Aguilar, Vol. 2
15 Pistas para Cantar Como - Sing Along: Vicente Fernández, Vol. 2
15 Pistas para Cantar Como - Sing Along: Vicente Fernández
15 Pistas para Cantar Como - Sing Along: Pedro Infante
15 Pistas para Cantar Como - Sing Along: Miguel Aceves Mejía
15 Pistas para Cantar Como - Sing Along: José Alfredo Jimenez
15 Pistas para Cantar Como - Sing Along: Cuco Sánchez
15 Pistas para Cantar Como - Sing Along: Antonio Aguilar
Fechas Inolvidables en México (Celebraciones)
Música para Despertar los Sentidos - Rancheras y Corridos