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 0xedbe984ca458d340c89daed2b1666bc55e138fd1af2c1b3fb081465d609b939d. 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/89ac23bc-6cb7-451d-9430-3607484c4f81.json and https://artists.proofprofile.net/proofs/artist/89ac23bc-6cb7-451d-9430-3607484c4f81.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 0xa89aef3db2c8a08becb619acba7b543454aa6c484c50cbddbfad713fe9636115. 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/US6R21355518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1764a6a211e5815884d1d27823dc082f4408bcd13ff4610d0c9f68853904429. 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/RUB311641412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf843cdf8f9ebec5a3f5968c2d9989c0e8329125b78ccbca62b851461f624394a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR2X41447614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144b6142bd4cebb2f287664fc44e066a38ed0c960c290f07c3310ff95ea7a256. 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/FR2X41447616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c434a398ae99dac758b883e494d31891a2380ff322b06130c048f4c143d4e65. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FR2X41447618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf843cdf8f9ebec5a3f5968c2d9989c0e8329125b78ccbca62b851461f624394a. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/FR2X41447614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144b6142bd4cebb2f287664fc44e066a38ed0c960c290f07c3310ff95ea7a256. 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/FR2X41447616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c434a398ae99dac758b883e494d31891a2380ff322b06130c048f4c143d4e65. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR2X41447618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce734115cf06be07daf6e4b8479ee4d01d543fe18f3c0a5113e645bf2545d42e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR2X41447621.
Кризис среднего возраста (Оригинальный саундтрек)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3307c04974e374b1fb6127093584d75da6ac1bfbff5217a96abac2277c713b09. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR2X41447600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465c3abb477e8ff4d61d5118c65aaf63d4281e3a3bb86a546bcd509f87b0a6c2. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/FR2X41447586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cefdb7fec978848058e97966d0cc2755283a2b1558e7fb3a1d31ce0681296f1. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/FRX281597842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ae38f507fc70dea60a1fc55764ec4d91bf7ae5906d8d9ef098961e9ca84869. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR2X41448844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8fe2f6b84f51424c2617bffc9cc8918b28cebdfb76c575d33797c77f016fe1. 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/FR2X41448848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44655d99d785dde3a2bd7a1b27986dfb1e41898c0ae08f9a8ea4b71daa132772. 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/FR2X41448849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c0c2203e9e72bb1b3cc8531327f68bfe7859f5efb70e9a219b758d4817a70f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/FRX201568879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04380535a239357d3c5014147ad750737f7ae861b65c3dd9dedbcf73bbc342c6. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/FRX201568883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c0c2203e9e72bb1b3cc8531327f68bfe7859f5efb70e9a219b758d4817a70f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201568879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04380535a239357d3c5014147ad750737f7ae861b65c3dd9dedbcf73bbc342c6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FRX201568883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa645d7f2822d9c69670427c779ae88b54e11fb7458f9b7dc0b39a5a7b30a32. 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/FR6V81650269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2164366d18fb2fcac63db8d74555e377f7a9eb2569303440f822a5ee673ee857. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41448795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d9b1e9aa25652422e31c8a410ce83bc7b063a72d1b6f1733224178096fc348. 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/FR2X41448800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2164366d18fb2fcac63db8d74555e377f7a9eb2569303440f822a5ee673ee857. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FR2X41448795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d9b1e9aa25652422e31c8a410ce83bc7b063a72d1b6f1733224178096fc348. 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/FR2X41448800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3769c46dd5d3501595eb1af65c4d62a55380d8050cecffd54605f67d6dd6bc46. 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/RUB311301009.
5:0 в мою пользу (Юбилейный концерт в СК Олимпийский)
Концерт в г. Тройсдорф (ФРГ) 14 июня 1989 (Live)
Концерт в Yotaspace 23 октября 2015 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6802534223f01bed61c5cb3bdbb75d5f13e03da4813b247e14aff937b28e42dc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/RUB311906803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6802534223f01bed61c5cb3bdbb75d5f13e03da4813b247e14aff937b28e42dc. 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/RUB311906803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5ba1896cb40a9c222831355096aa3d90a5226a48130bdae36d9f6566c4b894. 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/RUB312103201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a07fc998feef6f59668498941086a7bd905eb08c91ad78e70c8fb978302524c. 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/RUB312105503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68316c9a6b5c411ed082cdba7c706680047d6c6f40970751d4ce6227c0403a7b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/RUB312105505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0384b26de9ce64b6698fa517fd8e4fe45413a3251ea635ad9e4482a862f1d176. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUB312105507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4a90a40f0b5abc65a0f0641324914a5c3362aea5737437a56f6f7a090e31a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUB312105511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496824745554989ac79c729c14220e5ca87cf707e705276dc44bcf96c104d4eb. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/RUB422200753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e6784ffd8752ce2687af8794d360160c7ed412be5a32a19d4dabe67f0cf2f2. 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/RUB312208201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72488c37b293364e35f960da8322d77e45f5b8b0b45daaafcf5407da0fd4c833. 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/RUB422202403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac2834a7e1c9620e7db87b9f7f5068a48adf0ef24f1ac892779b702297e510f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/RUB422400905.
Станция "Таганская" (Любэ 35. Всё опять начинается. Трибьют)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d1ced7c14da4ade01e53e460cb2eda08481919723747490dcd8750949ad73a. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/RUB422104382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb744ce361e66011e0abe7eb4617f9d3c13998136a081688aa9a6a3caf2a7c898. 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/RUB422104385.