Vira Viktorivna Halushka (born 3 February 1982), known mononymously as Vira (stylised in Latin all caps) and previously by the stage name Vera Brezhneva, is a Ukrainian singer, television presenter, a
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 0x7febda42008c5967176c075a36d1ba1fdd082a6a6f2dc54043e08cf88022123a. 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/d637e199-7e40-4afd-8fd7-9c2cfe268e58.json and https://artists.proofprofile.net/proofs/artist/d637e199-7e40-4afd-8fd7-9c2cfe268e58.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 0xd3ff2843f61078d14dec1576e56c361aa12b220111d2bb73549a09774ec16f5a. 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/RUB421500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bf1dffbe613ca7f4aea3452a7c0dbc20afa043f3bae9e64b62a2fc986672b7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/RUB421500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b78e8edd8e591fe95a1c96360ce1288ecc2fb39c98d5f4d166d8a3f2c40c028. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/RUB421500113.
Любовь спасёт мир (Vengerov & Fedoroff Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb4dbf1bbafa8c0a950a3b585542b4172d2d10026eaf255d8ac2c9cf572891f. 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/RUB421500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541f3a77ff30fed74bdd35dc36589e862dcadf5ae62ac5bf609ef500604060e5. 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/USKEG1000811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081b301f2688d37b51bce0d6893c73e4be4667cdcb7fb7ab9e5d2e224290a2d. 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/RUB421401106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40523c5d5304a4bc60c50d858c2c74186dce1a52a2f7face04c3fbc7111901c0. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:45Z), 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/QMPU51292083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5beac2fbe6e453cef181784a9d66b2365c064981302d4a739f2f84ca8a65b58. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:57Z), 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/QMPU51292084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9b904507f0694096fd994a9d493841869b696868df37dcba72029647c2a77f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:31:39Z), 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/QMPU51292092.
Любите друг друга (Из к/ф "Ёлки последние")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56baade3606ed6d184bf8454d747e8e6bc7dd8086b1eb0be53017b3059f71f06. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:22:44Z), 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/RUB422000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059ab68ce9a9ba19887302e16602e1ce3d8a1e5ae4a5e20b662706f824a6a88e. 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/RUB422000429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcac26b5f0308c28c46d63da111582a44e7c73b78458f1b6dc11bcd425db3da. 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/RUB422002180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf28a0cd418a0056b172a159998ab1d112c3c9591ab53308f2241e3fba07ed7. 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/RUB422100371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875f1b7a0d9f9413fe842f734a3eb80a6716e66d3956851cd75a6ea153c847df. 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/RUB422104209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68c029557b3337880321b46c7b5791ae2e517876b07460fa1106abcc576b166. 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/FRX762161759.