Viktor Robertovich Tsoi (, ; 21 June 1962 – 15 August 1990) was a Soviet singer-songwriter and actor who co-founded Kino, one of the most popular and influential bands in the history of Russian music.
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 0xea072fc7406edd13071b28b2b1ea0bcab53b20a9a00706a3d0ab046e52ffdffa. 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/4eff2387-5b43-4bd8-9ef5-6fdafec46fcd.json and https://artists.proofprofile.net/proofs/artist/4eff2387-5b43-4bd8-9ef5-6fdafec46fcd.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 0x3990146073c9f81ae47bd2c1e011fd95f62292ed0b7518d78f0113ebae145f95. 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/FR6V81650839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cc9d77eb5833757454890caba6ba2fd3ae497cc16e69111ac6ed3d61c80ede. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR6V81650846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57064af711d3272d6a95db8cb98b7c3dba2d4b1f8723b3b78505b62daff9e1c5. 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/FR6V81650842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9d1623f93d0b52937c5a08c6065805915d0c14592207a294e2fcef7cb832ba. 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/FR6V81650843.
Мама, мы все сошли с ума (DJ Hitretz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0dd7956d5030a287503ec29c9be76e8c16168945e320590a0fd1493450299a. 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/RUA640900002.
Legends of Russian Rock (Viktor Tsoy. Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e1f694c1312ea148f6e5f4cbe56b7a75669f1aeeefc2e1efb54e6bfe2f4950. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RUA7C1803792.
Спокойная ночь - DJ Karas & DJ Mar Dee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6562186e9aa74bee63e24ce1a7e4678d94d0b106dfe6bfa4f97ff0c9a7ef1e98. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RUA7C1803793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca0ba83f25dfca3746b1cc4cb5f3728e2ea2863ad546f4481052d5f96a71cd4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:04:38Z), 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/RUA7C1803797.
Дальше действовать будем мы - DJ Vini Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f83a6c54707a81ca665712e880cf498bd9160be19e27c4ac59597369ae47573. 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/RUA7C1803806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a7b9174b2ce8679a675405518871335514cff4aa155560c66de5a59948e62d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/RUA7C1803801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dca584019c5d626eb373e95a3cd7f8984985b23ad11b685bd66792768d27b6e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/RUA7C1803805.
В наших глазах - DJ Karas & DJ MarDee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951a568a69c3bb278a69e80cfb115d7e9a48d4e18dffd430f3915e634eb96be8. 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/RUA7C1803803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bebcbcbce4b53e82ccc9f33ddb5a48d7fa1bb2c8edf925def42b9c78b0ef505. 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/RUA7C1803795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cd3b91cef6afce629fb16331859462ff22cbf0122d8e357d9dbb1911752ef4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:37:18Z), 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/RUA7C1803802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894c2f93ac96bb8431920a0d5a14ae7f38e8af5aedd5b290c590638b748aee6a. 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/RUA7C1803808.
Мама, мы все сошли с ума - DJ Hitretz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368eed5b49f279e12f3e403a47d72a687074b9177b87a8ce2171e670a3f293ae. 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/RUA7C1803791.
Виктор Цой и Группа Кино. Полная Дискография
Виктор Цой. Своими словами. Книга интервью. 1983-1990