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 0xb9ea8ab3b7a84efee34ae20e06eea75c660f4d59896b6a9245d9effc3dda7b3d. 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/a1988d34-8d9c-4ff0-82a8-c7cfa4756699.json and https://artists.proofprofile.net/proofs/artist/a1988d34-8d9c-4ff0-82a8-c7cfa4756699.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 0xd0706de1eced4f8a2e01f5970f8b65f34feff53b1a27b63ebacff96d12fe1289. 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/QMPU51209553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83437c6dc39ba6abc43579a0d20eb805a51586a60a799d7b6a3ae1a44449e45f. 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/QMPU51209554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f63b274b73f2eaf422ede239b3e444b9db5bdac00e911699a6bb583c3a91bf. 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/QMPU51209555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baf9e3255897759fcdc34587c1b816ae1e6926a4c798acbff988a335da6547c. 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/QMPU51209569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8f0ae5d9d7cf557f85ab5fe5f3c1002413388f9a9e41e471c7abd76c33c06c. 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/QMPU51209495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eef99fdad1d001127d4be56c4a868a75289ff954b61c5f459ccdfdb15c2308. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QMPU51209503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ee1eeb9b0efd1f0747e929d93d97edf90de9d1613d7133c0c79870fc320fa. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMPU51209505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1a6a41f4e37705a33d7d2b1155a6e61d10f74f1ecaed07b5f09713e1f2bdc. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QMPU51209483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1082314432d44b8ba047250ba56b2b25efd210e9f81c1e373d0ec7ee056f97f3. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMPU51209484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76fa8ff45f1b7495addabc0f66e8c084017d26ca16a78774896254c6bae1942. 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/QMPU51209453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696acd808742eee3c9af9452e58c55db92a860cdc81ce05655a6e25f2af72104. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMPU51209455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9298dad3b99a11161d6216b5b89e1f0c5343916996aa00de5cfa80b7e260e398. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QMPU51209464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2af8991b562a78b22cf9d2c6db96d125394aeb426241b875bd26961dd34f97d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMPU51209572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc5057556ab8f841c9a02f56a5ec33ffd8dbbf7307883bde64ee91a2f741ea. 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/QMPU51264548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90165d2264f4a596ce39ed2dc0ae86aecce966e739b215ccaa54e8f0a764e300. 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/QMPU51264554.
Под цыганским солнцем (Акустическая версия)
Русский подорожник. Концерт в Москве 2015 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ef8f23555decb773f62f82ed082638549e5af0108ab3413ed7af7743e12381. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM6P41546383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288fdabc16ea8d666d3eca71d4e78f51094df867af5da675906e53cdbbc4bfff. 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/QM6P41546385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899c861f7491c6f0c433ad7946ea6b29a7909060c664ad6cfe03bb53aaf5c602. 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/QM7281588728.
Раскалённые будни (Памяти Анатолия Крупнова)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e06019a5867d5717b216e1f604645f73e163e6be640ffeba7e5afee1f7325c. 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/QMFMG1545651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909c16c383c1e548b3ed5944a9805e2527f423845fcd88d20fde148f549e671. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMFMG1545655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8126f963e95e2635a925f230459c834e0c14ceba7f7aad035004a4eb8d0971ee. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM6N21780371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64307c6a9c96c1a20e76a801026a80d4bde67d065b8cec1e19d3455f305e0367. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:57:30Z), 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/QM6N21780372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a7838610c99fb1d09a4f93e883d1491147c9c7907b29c13a33cad85fc92245. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QM6N21780374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5139bd94b202b17be2e3f633679801e807def629b736788801b248c16997d2db. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QM6N21780379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ec5ecc4b9cbe1846519f280c0d615f0b8b872627ed40605d3931a2c078c0d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21780380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6674c87ec7ecc6173949ba3167ac7f3b1125d982222748620c61938ae652ee. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMDA71804554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd2db1b40ff84a093c6a854bade2555a96772284cc525efdb3a247abf6861c8. 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/QM6MZ1943241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcd14dbb9683deba8e5ba178e53855c260935e3d69016dbcf5d836b8e27b315. 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/QMBZ91942486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd89c7384f881bd025bf4be182929913a79e7c87583fe5546cbc33da6e1e015. 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/QMFMF2000988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3821fac96943051c9aa423207f8e83aa4e36b62f2b521d1dd68e1730f838b4c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFMF2000990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a425147db2683c63cb82da1f9e1b4b603582e00487c8aca44720c4028e1024. 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/QMFMF2000991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ad3f414265fb6ec5de2af033c6bf33c222e128c26a897645d720040b69c3af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFMF2000992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3ca5397d2171a3c168b9e52be92487ec1a30f8208afe964bf76d352993adfe. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFMF2000993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf729e05e1847a4aea8d149c6f32dd4ea5ea3cf03f7f0817bd36c7cfd0c292. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMF2000995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ddbbb2e6a378e9786ce15e3841dd004c1b07de3ff90700874e2332549be671. 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/QMFMF2000996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50cc4c85a659b40ecf57469ad8171b75b537fe3f5ad00277d9f2c77f990c196. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFMF2000997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c2ad3bbf1a69e6d07255bd831d97ef5e938e16ac3bebe1ac387498149517f3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFMF2000998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba8621a5527219da115256195376fa7f74fd2860c8ce95698c80b9b2b8c8621. 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/QMFMF2000999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3067a2e5cee845ecd151208bf33b75808ecb7d6fd860fe0ac7859ae611d7dd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMF2001000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8258889cf181c9c0d6719dfa949164f47679239a95b7acfcba14216f797eee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFMF2001001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a895fbe9f4e5c92d6c911d8c08f63a60445f1fae01516cad35fe9e07dc8f9d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFMF2001007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5868d940c6123cf0db6155c6ac7b40dd1d2850dbf3416da1b0c73e23726246. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QMDA62186744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51afa8b86f3e6a10805260f2a4bc46530c8633f54f614db58ec6fca9d105e491. 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/QMDA72163624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac2a7d3c0a790a79116d449a71191fc56ff20dd14076c390097ccfedc9e38d9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QM4TW2250475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb559ccc388f7827ee06c9ee1727b1cfdf8534a0bcd3cc79d478d0b3ba65ab. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR59R2262799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d60c291d1dac82ff5f5827863d86a4546b9f6cdfdd09c1fc78f092a9bb8f039. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2262802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76610cbc19e317a97d406cf9049e45b0b3c12c908b646bb5bba5d8a470fd0ef5. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:13:30Z), 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/FR59R2262803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098c7f5f7bb60ef1b0504b9c70d9ce762b197eef0c6c133d29f20b8f275e63c6. 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/FRX452255872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc167bcc44803f7feb44a3e1eccecb188f0217f94593de597e53d490524d1d1f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX452255873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe56c9a7d980a8563e94fe79a8cb87b6be00b797c00bcc4cd186ba7da006ef4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FRX452255877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbaa352d4b06d09ff887d093d9ba725e4adb0a3eb958160618b66c339264b6a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/FR96X2351052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a983d5e18424c5edda1734c98e178c64f3a463eb98283a3a099f0e2816a7c63. 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/FRX762335141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e676043e4d28ef9136ce52618ca8a81ecbe7c4fafdfa31845c093fc78a322fe. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:05:46Z), 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/FRX762335143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcfc2d60f58640ee606baeda511807f4259fd392f663131a5eaa799be43d632. 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/FRX762335159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36da1c5a6e9053a52c2d9f5ce9b8900126c0e63a558a7418222e0d9f97da046d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/DGA0M2373495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c15800f84ab178052c70980e5d97e9e6ad4168f041a2260fa4fb1257ae7b9a3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2373496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c21b6069353cf7b0e4e011f0dfe6d5ae45c69ea76552371e3e38d73f733257. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:58:55Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2373499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9805983f3a58edeb98a7f0873baba250d0b72520ef6291f1312e7281a3d2e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:04:00Z), 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/DGA0M2373500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39957bcf0879ce57a0d6e4d529f54f41987dd7fef8cfb4a8d4c3a868c5cb698. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DGA0M2373503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504b1faa95ba2e3a2994fcbfd022ba1414ff9fd5b7954fb5a45945b9bcf05184. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:27:04Z), 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/DGA0M2373504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0133b99ae42a8780a395e670f6966c6d647f5b78108d48049ccde7a3c164897f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082418653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b02faf4b96aa2516bea9a3329df3f6ec939122643a40b2816cc873e665e9aae. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:36Z), 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/DGA0L2418261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd89528e46cc8cc56bc9bd89f4e076bc8fd6f08ed43a15391b0b4608532a76fd. 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/FRX282540653.
Соборная площадь. Музыка к спектаклю (Авторская версия)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa146948c9a21f8b23bfbad422eab5a07c8bb61a6e5c5423f1297e8a4f8549108. 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/FRX282552847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b8175a24ad938cf889e8044e63eb34cfe6ddef3306b2e799c373c772dffeb8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:33Z), 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/FRX282552850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dcfabd4fd25c9b62229d9c62cacc17903b98f6b60e246c1d036c7bf9aeaabf. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:58:57Z), 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/FRX282552852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8a9e84022737604134853f181c5cfd96301d582d947f0d82e564ba5584dc4f. 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/FRX282552854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127867fe435115782b2d1aed30b410461d00948adac72c960525e81208a87386. 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/DGA062039233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fb1e1feedf747c006dc0b9eb493db91701475a8658eb00531526d3d864fd82. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FR59R2285840.
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 0x6fed1ba623c471249a717145e69837218ba2c1961d77a27def8bc4f129aa1fe5. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/RUA1D2373517.