Natalia Vladimirovna Poryvay (; ; born 31 May 1973), well known as Natasha Korolyova (), is a Ukrainian singer of popular music. She was named Meritorious Artist of Russia (2004). Early career Korol
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 0x026502f88c4eaa527889cb51a3c6d80be337f08a4342936ec6c7afdf252d9101. 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/1b9069a4-f5d6-4689-aa70-2df5bc93cc85.json and https://artists.proofprofile.net/proofs/artist/1b9069a4-f5d6-4689-aa70-2df5bc93cc85.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 0xd37f29fffefe66e3f1a380a76a71cdfaa0f132165c4ddd101af72d6a6ee9c040. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:48Z), 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/RUA7C1906258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308edcbdc3bd397271e3208b7f59b9cbf0462cc4ecb8d5604a4169b888efb213. 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/RUA7C1906268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c48eb0252787e84a5a6d29a3b6387b89dd197e4a2e65f11fe4879cacebc799. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUA7C1906269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408352fc73f2790f101fc71205201a3af15032f092364f07b41ccb88f9cffd15. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:05:44Z), 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/RUA7C1906271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bbd8ac595abcb247c43948e47902b713818e9dbc42ebbab87739e08049aa0. 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/RUA7C1906275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fea15a17a99df127c5038e9a0c365a2cc87ac576bf32d69cf9cc19c58532b8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/RUA7C1906281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bc3ed9427093fb68c7363b028d633be1f154c9826f989bd3f2d4469ce5f493. 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/RUA7C1906285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2544e109ad17a7d0656e5938c54c86ca0704e8eeec21221bfc12c6a3bebfdb35. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/RUA7C1906299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8838c6aa66535be2ef0485d0146b25a2d0eab7c4e6521a04733518128677a67b. 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/RUA7C1906308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2739b82946b73a48a987f091423e406c7122a4824f585f6a1be1f93fca9c28. 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/RUA7C1906310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75f7cf0eda52c3cf34a676e2757b576bb2597019ec6d4f7d8c87f7f020ec9b9. 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/RUA7C1906314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ebe6ddd70843791ecc502943241814e3f1a47850565f87d476b0e1448082c4. 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/RUA7C1906323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8836bb40d46e806c57412694700b11f35f67e220e7711e5b30cb735612247436. 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/RUA7C1906349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b24d6fb0411422e700b3311cf4e663d0ca8ab348d0658db52d56620206e1b90. 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/RUA7C1906353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0862647a22459a5014d35330d8893ed1846f10bd2602b728ddc60802e883f888. 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/RUA7C1906359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21d7077d92f2f42c2d1d2ae912ef6bfea6f90960a060abc630b90483b150bd9. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/RUB731512943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc8a943a3c229448a9578a24164a9cbd01d26e0e4828d4e0c00967c8d646b89. 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/TCADH1772099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab9085b822f8cb4942c787752d2f9b9125be0a0107e08976db8adb6955ba97. 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/RUA7C1906372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c1b99a6ebf4bd60c9165fe2df2749fe27b599f599e8207523a7f90fccb85d7. 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/RUA7C1906374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02893a3448f1581549c2a5005d3cbdde06c34603cf573db74cb8d8a6e107ed0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/RUA7C1910246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628111f01766ef8fad9dcf927b3f63f1e7e07475693db3e913806d647ee2a8d2. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/RUA7C1914080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bae6bcda106dfd3e1678b0f1bdd2f7a1e5e5bed2247a88b2fdaf3778b353006. 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/RUA7C1923419.