Tetiana Mykhailivna Reshetniak (, born 29 September 1984), known professionally as Tayanna (stylised in all caps), is a Ukrainian singer, actress, and composer. Early life Tetiana Mykhailivna Reshe
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 0xbd85fd1caf8ee4392d2b818179c13f56d2623359188feac7aea078606b49d68a. 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/93529133-15f2-4e99-8b03-e10419dacd0c.json and https://artists.proofprofile.net/proofs/artist/93529133-15f2-4e99-8b03-e10419dacd0c.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 0x25c475a678332fa5254f56c3d80ad6758813c367f796fd452bcf27576baa8488. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR59R1618944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b2af6e8c026945877ec4b10e6ffbf7c464b4bbb007e7a1e70bffc4b8c878e4. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/UABM11600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887e79f54caa5e3a0b163759186be31b91cbf11cae5648cff3d1cc12d4fcd334. 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/UABM11600241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b9f794558911195ea4724dd1860359f93c00b91c4ac026b42bf0c9dcb629f6. 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/FR10S1799668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd9a950cc8335198ea0ef76e3834bd5e45f3c4dca33ddb0e95f456395926250. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/UABM11601061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b35c08d03e5cb019faf82ddbc4bfeb385ca0c89e2a9ff1f4c1a6bd74b72ecb. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/UABM11601065.
Фантастична жінка (Bakun Remix) [Extended Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60744ef8997b23e0392ba5a31a8a81639658beda8f7bac51cb911a548b269e84. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR2X41991242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46733bf2dc2b414f891355adc1f66af934f0144bbe7757d219dfad766e554ddb. 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/UABM11900658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb8abad9a38f645d2e4dbba78d21f7cecf9deeacbede5b1772a93da4a593cd0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FR96X2070292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc3af7f5bfc60ba9e7eab0e9d2e500b49e23d5582dcd26545f13e0543445b0e. 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/FRX452117610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c0db544d9812f6f5cab7d9d0051e7d4d66887e4cd588eaae17292c4226ff5b. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/FRS182148875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7e9560c04992d68894376b3654bdcba19c3c3a737bc85b1bb8c104b5529f6c. 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/FRX282266474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efd8e7dc0ef0939d77d1e217a27a2345f21fdcf5ecb44076438c00951de3caf. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DGA082245907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bf15b2b3f8b01420c4105fed07a0cedc07f1a684e3e8b20a75eeb87072b849. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRX452429411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1fafe61e2a9e5708849963db3315e05b7411be5916ef4fd59758d22f36baf0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRX872424261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff841336102077739aa5e79cab94078e8a78545ab8570a997a925cbf9caf3a02. 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/DGA052491636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b9be989131d613996d67f4d45ffe586d14f840a0a410cb1fbfbc911f033ac. 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/QM4TX2538317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc867c4b8bb53a922d503c8cca1f643c2454270b1b3ba35c937aaad2f5f344ef3. 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/QM4TX2538318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3453196699ac8dbcf7cb57125b002c44248475294da1e42adb5086eba54350. 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/QM4TX2538319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff370aec47f82f416ef1a6e00badfd39b32069ecba44889cbfc2dde120a3e48. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM4TX2538321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94555bd8a9b775fc35ace9c8626878da613b9ac8cd3842b5824ce03fc6667105. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QM4TX2538322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e2b084d562fe048a00c2111d115728b91d8b0ad6bb38ede29d7c1db189b20e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QM4TX2538323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR59R2298652.