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 0x82522377157320d1d6c0c89b889feb28442b43f74ab3c30aa977bfb2242de9c3. 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/329d7988-7b47-40e5-a394-96dc822b04d0.json and https://artists.proofprofile.net/proofs/artist/329d7988-7b47-40e5-a394-96dc822b04d0.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 0xfa9d6caf9dcc8036ce33f2c2d18eb30229438f4df603e4e86065c573406886ec. 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/USJ3V1041804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12430adbb14d7ce41d74f4328bd7fb4c28c1ef0815622deccaa43bd52daf1a8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USJ3V1041817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa208cfe0172f3dfb47dc9356cf40fd8af18de120431a51eed192151eb791912d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:59:30Z), 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/USJ3V1205265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d7e4329358bd250a4bf2f966dacb48a1ad986397898b769db65994ae2989bc. 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/USJ3V1141165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4aeb152b3fddaa4d6b98a188997d8515ede18a9d4889ebb7f9506963f6edf7. 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/USJ3V1141168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4166924790a18768f0d04e136141ca05e7d790f133159ff6fd0e8241366b92d4. 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/USJ3V1111644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ede447cb7c28ce16a1516438f0ecb02823a92768271795c16a8d9435cd01c3. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USJ3V1111652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a7c18ffc60ba7b1d91397f70f8c3e8023b5f60a8522830044561f6135e1b0d. 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/USJ3V1046336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd357e37ed9fe5d92548ad8857a759bb281c21b8743b2348acaa90a51e6bd048f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1110219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18e4dd6f35ab269e33c389647641af41e8920e11e187216ca9c7c691166d8dd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAGX0502445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ec702c7d960e4e417ff0658d5b10ec2551f21e22f621a8d581fd4fd750a36c. 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/USAGX0502452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c14d15a6fe9451864ff329adf1a8dcea860179229ad8162f2932dd54c06d92. 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/USAGX0502707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7056e8a95faf3ab5864182db22a087f8ec72053130446cbc5d544e67ebe29d. 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/USAGX0502708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e119d91861eda02e93264560ab83852af8135051d753bb9aaae713be10838aa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAGX0502709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0065f82b077dd02f2da13ea319712a993c70c9f37fed9caf62749a148e96277. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAGX0502710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3cef3d072bf0560b768f57cd87683265b2fa08e02c193cfac2a86f43bb225f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USAGX0502711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69905f88b8d7a768c14248153c0c147628210dd6fa1f7512a67df0ea52ceac5a. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:39:02Z), 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/USAGX0502712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f8ec1cca6ad887bdceba13bf9122514aefc9218811f6efbba1005c77a209e7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USAGX0502713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadfc8d59d3e946f247714b7d29d9b687cc528646afe12f84e612a352d640746. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USAGX0502714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4ac814c23a15094e953b5e10941eca4bea64e5fd2daa4041275a8b14ba8b6d. 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/USAGX0502715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd519e109d8136cbfc32257e7ed16a985cfee88c4a7d43549bec150fe255c92e0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USAGX0502716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f550ef4b45981f6aa72541e524d5a5e4536e995165bad0e87a3a122822b17ef. 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/USAGX0502717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e780329da776b62c8adbd727802bba0ac197697d8bacc63c5616af9a5b46e1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1569833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44301371bd5f223bf245d264a483fadef88e1a23efe6a9043e68fefe1df1581. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1569834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe95725c9b8ace6a9b18f09185deecbc6c2d8473c885e73d2a25d52241ef34. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6DC1569837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088310d34ef39847f59eb5be2d992cbebfd37e057874771ec6187b069723abb7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1569838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ba645b28d65016633066e5682fe088c9965bc3aba407b5fb0bbfe147ccc11f. 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/QM6DC1569839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c5a848d57ca258da8a0aa47e396880330f0c244a9705b414a57a4f1a4fc414. 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/QM6DC1569846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc78eef56be2faf607f8b87e8bab3b32093e886812f198d9b06f32d0a50d0042. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM6DC1571611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44301371bd5f223bf245d264a483fadef88e1a23efe6a9043e68fefe1df1581. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:39:43Z), 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/QM6DC1569834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b65f94fda0c9ccd9c1298356e5d38637fbcfbff5f4ac3a2bdcbd56a437f4dd7. 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/QM6DC1569835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe95725c9b8ace6a9b18f09185deecbc6c2d8473c885e73d2a25d52241ef34. 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/QM6DC1569837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ba645b28d65016633066e5682fe088c9965bc3aba407b5fb0bbfe147ccc11f. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:04:17Z), 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/QM6DC1569839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7ad4d7fb7f42336681693a56bd5028a609c5f1080ffd373ffc9124fde158fb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1610836.
Los 15 Inolvidables Exitos De Los Magallones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a37a4c1346c99c8cac6f9fc82848ac3032ad6754a45f32857c76a3171bdde8d. 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/QM6DC2089007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a755612936f431bc95b05cbf0d79331b9e4ab63cd540781f6a851c34b31107a. 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/QZDQH2261213.
El Cuarare / Juguito de Piña y Papaya / Mi Pata Camba
Cumbia Huehueteca / La Tristeza de un Cumbiambero / La Cachita
Mi Negra Guapachosa / El Palomito / No Me Quieres Na
Quién Será / Cotorrita / Arriba la Arrechera
Julia / El Burro Loco / El Poquilín / El Rumbero / La Malagueña Curreña
Mi Negra Guapachosa / El Palomito / No Me Quieres Nada
El Cuararé / Juguito de Piña y Papaya / Mi Pata Camba / Pistola 45
Corrido de Chico Petatan / Filadelfo Robles
El Cuararé / Juguito de Piña y Papaya / Mi Pata Camba