Anna Borysivna Korsun (; []; born 15 February 1991), known professionally as Maruv (stylized in all caps), is a Ukrainian singer. She used to be part of the band of the same name, the successor of t
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 0xc30b081e53236781b037dbd0a664333436bcf0ed0c1447b1b7ad0d3a546c580d. 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/337e18ca-176d-45f7-944a-b58c6c2ce598.json and https://artists.proofprofile.net/proofs/artist/337e18ca-176d-45f7-944a-b58c6c2ce598.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 0x4fb424f6c9c56c36d40de7eb0abbb5e9703fd8049164efc15706981ee042119e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUZ231800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d966ed51fc2b91e3e8c7da7c795d3f920fd3d34f6acf6ef76209fd44062ca18. 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/RUA591800315.
Drunk Groove - Kolya Funk & Mephisto Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f54139748709e61e8cae16bc98b80b337976c649ee537ff3f602d3f6471a95. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/RUA591800310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bc9cc73eb4a210c7d87a319e2b6ecd3b14d5d06c164378574a8cfacff7cd90. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/RUA591800620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd703e8ff5001c58cd2dfa983187b1ba5d91a00e27da0f226ca252b86eb6b783d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:59:22Z), 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/RUA591801025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a93e6c9d2875f991de2b43a8506f6df49cbc10b7d4ccf7aebae13a203e5ba7. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/RUA591801031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3957f89e95ea19178f3bfcb967960a1ff62d6c269151ab7b7a5db82fec64f77c. 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/RUA591801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8615e7a1439d2f8334df40ab53044d7088d7820a9a0c657251603fabe8d53e3. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/RUA591801043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ee82b01ac09234fefbc2cb39f80cb9daa16ce5bdcb3b120f271802f327e17b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/RUA591801049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6dd6d196a04a63d41ea812cddc2011ed8c3ee81f724e939b729b7117fe1b54. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/RUA591801059.
Focus On Me - (Strip Version) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb392e29a554015af087013b2c05769a5a1ad98d437c502224092e649b2c0f92f. 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/RUA591801062.
Black Water (feat. Betty FO SHO) [Hip Hop Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb39fb78a91157926a1f2a79811eda5faf8d2f50ee9e7359523d73f882c7da11. 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/RUA591902210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdea547aa1f850d06abd8d4dd9fc82a35c35794eb3994192a20952afbae4375c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:23:31Z), 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/RUA591902213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91788804a44ef2742dc9d863f52e5a2a058c5341978338c5c8d2d8b525d409f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEA622001327.
Есть только миг (Из к/с "Перевал Дятлова")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ded2e047124bf6ddaf97d8770710a0c176aac9e23f25db7eca5639fa1a36493. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/RUA582100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e1e8df4dcdd83b53d69be9e9d19f11ca32f19b85ce566aee2443ade8ba2dbe. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:33:05Z), 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/RUA012101079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2c9e4411f3e3d0099b3656f64e41155e8e7748abedc0edafddfb0bc864dcec. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/RUA012101080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957df31296bc07a49f2d17e0f1eb7f3353b0a2f131c4f389ccb0b13cb0484660. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/RUA012101081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a5b63c69265fea00abacf03ddd912be0cb4857a0b4471f89a99487ee029a90. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/RUA012101082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec88228d3c79b66adf50bb076220be64de25bd41c17bd75e3fc9239a8e0fb03c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/RUA012101083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e99d7439f292d9bbecc5913c3c61c1ae675b6cfed15ad14edbbcfc7ced6eb0. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/RUA012101088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecda04ae843d35333e44c51231fd6af6bb78e7c7bb9737e2d9c679e777257d6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/RUA582107103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb8341e09a2514d10d82ba54bf25246a6d1c1328956f70b70b8e1d903d3b02b. 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/RUAGV2304073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a89165da93683dfdc83304e1775d24bac5ce9c42406ff64c6351fbfd0ee7e7. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/RUAGV2306016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf12f4ce1166f33217e36e1f3b4deb02a517e983ff0f0fea5b61045fe9ab07. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGV2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15acc1bf27768bb76f59a7cff2589943cd45f88f1214fe985e93290c0fb05b2. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:53:15Z), 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/RUAGV2403140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f648c9f5990121f3ff6c5bebade0ec9e54e43ddf3d000e4c651e92f9e503c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/RUAGV2403978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59c636a87b938c047a3e645d39348cbf2ceaa466522eb5a4f85f4f577fd5a45. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUAGV2404588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fd7b96aa54374ef360ae8fc62554195b6fe90f5f2db636ba9d907914854cc5. 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/RUAGV2407196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915ff3fcab0ac36f865b38984eb0008aad33310899073ee8f2b03b5923ee9f91. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUAGV2408770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f625707e3376251f7b8aa35fa218efa87ca0d23de969f566c9c8d04a3321f0f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGV2409676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00631a595a8265aa8f11b5bc47445c06af554005489f685dd8434516df45cc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:37:44Z), 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/RUAGV2409677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347980fdf8a7474c802c991a39b1489647243e464f11131ec095927d93493a66. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:33:11Z), 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/RUAGV2410999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f98395ddd77d4dafa8169e76ca7e9a08f0ea9d22f198e2760cc4fbedbc1f83. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/RUAGV2500456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02123e1babb676fa57ce9a45868f83b0328ae84371a70971032747e433acbf64. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/RUAGV2500979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ee624b491c4e8a151f61eaf65522bad2786f7bd14d6724d700bd3adc871775. 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/RUAGV2501177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd046b3bef0aca13fd89e86db77a4b2a4e7cd7b2b191c7708b85cfb6ff85e6b2. 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/RUAGV2500978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02123e1babb676fa57ce9a45868f83b0328ae84371a70971032747e433acbf64. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:45:07Z), 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/RUAGV2500979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb692d3f0d834bc35f8f43db27106d7d92edf5514f470f2342ae45f4b0b7bff5d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/RUAGV2502112.