The Castro Brothers (Los Hermanos Castro) are a male singing quartet originated in Mexico City, Mexico in the mid-1950s. The original group: "Los Panchitos" The original group was formed in the mid-1
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 0x15b4a8f423f17b9938fd7b410ec62e4b82be0e8d98daed0bb8984661caa0bcc5. 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/8b7ce0fe-f6be-40a7-8309-3235786809dc.json and https://artists.proofprofile.net/proofs/artist/8b7ce0fe-f6be-40a7-8309-3235786809dc.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 0xa5768fc8aaceca2bf8137be06cadfd7a3984da086414f2de82fad8f02008952e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FRX871514782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa219e3e8cb6309bc77ccbbf17ee57afba9f9c3b44f8c38a00114dcde074feaf5. 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/FRX871514787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c768576692baa09523f5d06792a796c4b529366a87802cf77633f8df75da65c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX871514788.
Poutpurri del Amor 2: Se Rompió la Cadena / Igual Que Magdalena / Lléname Mas la Copa / Otro Weekend Sin Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5bb0de0f83915ac36837eef10e3c93941a6f946ae857a51b88227753d5e78c. 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/FRX871514790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb13cf5000d5e96123d1f6ad09624b18bac3f3eb2fd9f381274a3b1a92829a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/MXF016600286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c50b034aa91f74ef0c211abdc93dcc67b7ed534429962c4569741872a05f7f3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/MXF019501442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac79a97f8ff9170742c1db54a6411071db5fb064de04ae3c8a3c232e12bead8. 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/MXF016900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f98f875ecaf666953a8d74aa5684fbde68e70cde046e40a1c782a2a7f7b203. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/TCABK1237087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf8341d7dda67dfbbd8e2425efa4168042b4a1b307fdbdb9d4567d699051012. 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/TCABK1237089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e44520f571ea7d631387ce6b9c5c00139acea18fc5b5b52448a0d490ed9367. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCABK1237091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7198461c448f07864b67a499b5a18fd55e86b473c51a6544c360946c7c710b41. 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/TCABK1237092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a162704a2ca91912ae3b3682dfa06f0112e15cb59c658722b1683562673548. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCABK1237093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddaa1d18b32d9eca9d24f66792399e03bb2c2d8b42f8eb8334a990a10e761e9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABK1237095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d6c25433fba31298edd6bd35ada9ac4bba10d7acf8ae3dee33a4ee647ad16. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/MXF019501433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d57da3d97919051d327612ea1e7053a7f7227d044a9bde037a878eb7519ef43. 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/MXF019501436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb13cf5000d5e96123d1f6ad09624b18bac3f3eb2fd9f381274a3b1a92829a. 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/MXF016600286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a77e361611b8eb025f412c05a463951f172f63f83d5d39eb0c623c96c86f9e1. 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/MXF016600289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c98a8f75a0c815682f1bacbadca82a30c683732776661fbc1a767441f03d91. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF016600291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e4cb4d9f773afed5357597019440f9f2ce17ad8e99a70aa1c22758e3f03461. 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/MXF019501441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c50b034aa91f74ef0c211abdc93dcc67b7ed534429962c4569741872a05f7f3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/MXF019501442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ab259137ba825ec26d93267474724d42a95f1928280bd49eaecbea6a5e79a4. 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/MXF019501443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1837a173e702151d3d4fe26bcbfffc874b60ad7eb25169563ed407bac2afffc. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/MXF019501444.
Sólo Pienso en Ti (Goin' Out of My Head)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1fb64c35435321d8e1aa0ab74c26d3ec3f7e353322aff98feb32f91870e0be. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXF016700350.
Un Hombre y una Mujer (A Man and a Woman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629d151350c2016d043b7b2d7e936b48f3f3593d9a696da8c0ecef492e7a4821. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/MXF016700351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac79a97f8ff9170742c1db54a6411071db5fb064de04ae3c8a3c232e12bead8. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/MXF016900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288d47a44eb9e3877eb917eef9f8417e9cc4d36c45ac872c82982e805aadc825. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/FRX871513934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebbac30121caf1461cffbd81e66528d1451053676d209b75ecc16b2a16cb126. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/FRX871513937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46625706626b21b3ee19abca7fa69c16e2a506e5b4f3fc1a367d8e5f4d50320. 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/FRX871513945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035fef673b39478c97a277743cbf4860aa0220f9a8eb4f012fac4a24db88a384. 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/FRX871513946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7260a1a7bf2c55987f43ed576c96ed3caafdc485a13d9980a19831ff5b11e84a. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/FRX871513947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58522f676567461cacbde8e231f46f3d707a8765113fdc56056cab013d679414. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FRX871513948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0e08e518a78f4c49387a9ff15cd9d6f9c326daf7311d75a41ed7c86fc419b8. 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/FRX871513949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fa3ae7238ab2095a225fe9b8f93e55638f351692554aee9f957300d064da01. 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/FRX871515806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0f8c68be3ad2535826b7a7f0f73830028f4c8997a290cb6b1585fecfed431c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PEIF21509038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb609219dd38cca0c6fa4a9aa80666c24b8f8a4869330ee270999e197ee5f617. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/PEIF21706002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d92d1262e93a2d9598dc45c92813f035c248bed1537c759731a2d14d588f67. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/PEIF21706006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c0f40d589e20db0a8d81f46e10b397bb40edef15150ed31b0fe28812fa5b1e. 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/PEIF21706008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bf8b9ca201dc9cfff64c3e598bd033a1bc681602f499f95f19a50987779913. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/PEIF21706012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ede7cf9e0543d414e1ac9c75590c439dd134385797bdd0976c5545540cc6e. 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/PEFC91709033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d41dc798c591994c7338c89deede3eaf8649be2c5b295dab99d193e42df75d. 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/PEFC91709037.
RCA 100 Anos De Musica - Segunda Parte ( Grandes Baladas De Los 70s)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5dec79d1ad583c09887097ef1fbe85607ec0a29c194fb738dcecf6a946a87e. 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/MXF010100512.
RCA 100 Anos De Musica - Segunda Parte ( Grandes Baladas De Los 60s)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1fb64c35435321d8e1aa0ab74c26d3ec3f7e353322aff98feb32f91870e0be. 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/MXF016700350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fc10d2a0fd3d01c76f28f507f023d6ddb3054f9e913151e21fdb9657a02c55. 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/CADC41103981.