Gorod 312 (, "City 312") is a Russian-language band from Kyrgyzstan, formed in 2001. In the beginning of their career the band's name was "Mangra," but then they changed it to "Gorod 312." 312 is the
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 0xc1cbe46c62880fdbb382fc6ad41040a4f21af34f0c686a5180178427d8b6ef03. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b77206c-ed4d-4d4c-ac5e-13c9d11b14a5.json and https://artists.proofprofile.net/proofs/artist/6b77206c-ed4d-4d4c-ac5e-13c9d11b14a5.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 0x559f1847e0a5d81d04a0a3f53cbde95ed89fc109c866fa1ac01b8a28a5ca24cf. 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/RUA771300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cddd17fff696f653f0660cae176dd233990dfcd8998beaac14e1bd7531c1933. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:25Z), 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/RUA771300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19b9af859672b4f6035cc161c3d3aeaa5f2454d13b65e3f569d95e2ba2b0cc5. 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/RUA771300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9631cde8741048b5c7d0d8049bd2ba559722c049fb1223343a549bbb5a77f7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA771300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8812d0d004924531a8c535a62b460c15eb06a6252d51d08dab77be07d3991a5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:16:58Z), 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/RUA771300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b383522375cd5a3085115a2a2b96d0786b4fdcda875cc3cc4e05a95651b55f6. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/RUA771300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793d17035314775b5d13fd2374d8214182c9665819796a97f0ac43e3a55cae88. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:37:38Z), 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/RUA771300037.
Останусь - Moscow Media Orchestra Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd610279c516f095910802df168110fc862ba13fdb82bb6854e6a37a086d71d8f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/RUA771300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f40cc6a2408d48d545e9bfdf6353d1a75cecf6a612c037aa097fc004fe026e. 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/RUA771300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065995308fcb2531b8bd9f79cbf269e78c209022c6436997e860a2979d0dc807. 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/RUA771300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4144d1b9155741afc74032d73aec8e828b900f8341b91cfcd62c604016d7c2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:35:12Z), 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/RUA771300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7bead95b99655ac73e5681c6753d1aa7e49da0237a6b2bd71540efebe73879. 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/RUA771300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83adbc6cdda5a1dc830d17b61729875c66f06185517223b40b8d720a469cff79. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:11Z), 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/RUA771400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb8e6438cfab5426e70c75000db75b91661c8af548a5851701eef02f74417e5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:17:59Z), 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/RUA771300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acdfc2ad1339813edc55a23281932c198abe83a3b79f953e24bc319b86bb506. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUA771300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc510e741c57acb4588220a21f6516112056f7e66f0ae86a597578eaa6b6060. 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/RUA771500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9154ced80946fc6a2f3942111253b1125025435959b116e24022d950ac1d4302. 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/RUA771800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474ce18b6ac33adbf1b5941f561f0b4988aefab7c521e34d82cf4ab3d1a686f9. 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/RUA772000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe861fe06c217e9e8ee6fa4f68e969814d6fec8327584062d7751e12fcfd2ee9e. 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/RUA771600105.