Tvorchi (stylised in all caps; from ) is a Ukrainian electronic music duo from Ternopil, formed in 2018 by producer Andrii Hutsuliak and vocalist Jeffery Kenny. They have released five studio albums:
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 0x7358a0089f25ef58dd7d541cb7232ed9ce6fc8ecebf136c14463c8b341393221. 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/cba2c890-f578-417f-bbe6-df9d51c35560.json and https://artists.proofprofile.net/proofs/artist/cba2c890-f578-417f-bbe6-df9d51c35560.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 0x1ac315c3511f468368f94d86143f0d419b69474ecb9e41b746dbdb6878af7d64. 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/TCADL1859029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfe435dec095b56890a607f631a736431a044f8ead95866c732853f678f28ce. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:32Z), 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/TCADL1859036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c27e37473a3c742c0665b58bf5a4792c49eae33bfbbcd1f72b95a78322462a3. 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/TCADL1859037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14555302b4fd5819b9f4b505cdc1830955bb267f0fbedbcd09f4d4e4465fac5. 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/TCADL1859044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8e94dde3529325fa5822d831bafb807c8d5e4f7196b3a4c9c37a4c4796dd23. 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/TCADL1859050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b02496f5a539c702dea67ac58ddbd66b3bef69fe304d04443486a68391919bf. 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/TCAEB1987348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13a8607ce0aac4c5697d4bb5a461df7078627babcd984a877b3fd1952c8ac16. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAEB1987352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e971981892e2d8c3834a3296830ecc542319ebe4309783cf8ff187fc2df3510. 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/TCAEB1987371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975acb72ef4bd36a3d33c0f8d4232849f55234ab09b0254f4dfb42783332beab. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/TCAEB1987387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552185f2ac91e12d2c743119274378243c4ead63a0228fc68f24fa7120410ec8. 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/FRX762027315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7565e61eb1960a96571984f364a47af7f78309d6a8f3d6fc12f2a8a5bea3060. 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/FRX762027317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d4ad16d99264b51d16bd964b626025b5705e13232cdd8543938b58fa1d6d03. 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/FRX282080260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855d6098d19cb1705b127b0154e1abb6b7e9a94892996acbffe3b8574231c7a. 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/FRX762027318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa949e60ae13033b639a3c86ad331ef37faa61f418dfab5ee463435e41722ffaa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX762027319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283e5f90418fb7246a42163a73ef8717cc6b3af845460abfa325c3a0ecc2632f. 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/FRX762027321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998713ae7349d543d8d90106b82cfee4fc06261233e024f3885f5a7cba6ba091. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FRX452126401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389e8de17874742a989bdd332bb155694af35c2475c2c56f641d8726b05c37b2. 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/FRX452126402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e652fcabbc35a4b98ad230dc56165164ac56f371c0307a877c0e91779d0eeb8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:37Z), 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/FRX452126404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2306deaefdebf53122b2d7828850d70a83bbcf42bb0831c8cfb9be4a952a11. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:59:39Z), 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/FRX452126405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb426d68a160f3cd6b327d7b06a34d7f553ffd80375bb4afb10829dc95cdf0eb. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/FRX452126408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7bfea98a408ded48a0dff6504694bad9645cd20dfeba386cd923e54f9866ae. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DGA072277710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa554be86a119d4d2e2697fa9171df867156ccda3c5586606f8be8e8779ea2770. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/UABM12300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0664ce2b96f017a14100a711c1cc0cb159523737fe07d8d31ff61167f201cf. 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/UABM12400063.
Два озера повні сліз (із к/ф "Я, "Побєда" і Берлін")
Два озера повні сліз - із к/ф "Я, "Побєда" і Берлін"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa616e8e6aa5c5c6e080acf08c2db6705ce170c70e29dcf695db2339d2f1a7b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM4TX2404546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5318dc9bcdbaffdc632030dfde1ea3306c8958d7f8877f6c02da1f12c7fcc7. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/UABM12400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20722a8974dc9da12975696dd99ea862fcc9eef5bf9201e947609fdb65a6b96. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UABM12400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d660179785702f65e93695e543ac2959493aa9b17f5fa28b9df5fb15fd09606. 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/UABM12400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9822ab78733f00844819c1d80787ac8ebf7731628ff80cf8156e10a2c9656fa7. 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/UABM12400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2938e786ac990f9a594cf4f180b745343f317cd1c59d42c162c5798d49f2499e. 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/UABM12400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5318dc9bcdbaffdc632030dfde1ea3306c8958d7f8877f6c02da1f12c7fcc7. 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/UABM12400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5162e884183fe6842bb157a7a5496056bcaf893c923025c1b85d3cba3a8541e. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/UABM12400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe7c47655b21b46073c16056d69c990bbd12f71521baab95437fe60a80f6f6a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UABM12300544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d617ed96d06bbbcd1ddc5ac45d2d984e52dc80104782d4a77add7a7eaef823. 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/UABM12400306.
Щедрик, щедрик, щедрівочка "Дім Звукозапису"