Andriy Mykhailovych Danylko (; born 2 October 1973), better known as his drag persona Verka Serduchka (, ; , ), is a Ukrainian comedian, actor, and singer. He in the Eurovision Song Contest 2007 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 0xa786c79a2722ddc318cdfe65e35c797fcf69ab31e0073a89bec845d2c85076ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a137826-7bc6-431c-86df-7ae4ac6f48d9.json and https://artists.proofprofile.net/proofs/artist/4a137826-7bc6-431c-86df-7ae4ac6f48d9.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 0x6b85c735beba3b8fb84c9544afcc1ebde9188bb99fdff88ddbd6e52b4c263777. 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/FR6V82651081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d8bb8c39978c5c7bd173323ecb0416ac88f63b15699795d2b71e67024b9784. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:00Z), 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/FR6V82651082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6898cab40798b947be5bc0e96a9ae4b3147b221a170647baa0a1c14f466e9ebd. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FR6V82651084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c40e3bdb420d6501f10f95450b1c73715d4b144b20ccf11c944949e924a1e9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR6V81698351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8040d5530ae679d85f4643bbbc3067611be05f1e33091092832782daa4bed089. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:41Z), 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/FR6V81698359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91508787128531d4750a79b4f00b76dfe1cd302ad8dd5c37b336fa7b9f4fce98. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FR6V81698366.
Dancing Lasha Tumbai - Ukraine (from "Eurovision Song Contest 2007")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25614c9d442b8ad96ae70058079533a910326eec272cdcf77759b12b2207448. 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/FR6V82651044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3376309c0ca3924d4bb6563de0d77fc46739864d9f43d542fbd1bdcf3193a4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR6V82651045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebb10e7ebf0d55bfafac2f2965cfc55d1da999eba3f7c7c28399287e2e9e0fb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR6V82651048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32867b036100170b94ca11b89eafd3d526c733024f423471b6f5afa415b19fee. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V82651049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65c762669d4937db3d3c93fe17c557d55b17406bb4661bac177e082c766f8d1. 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/FR6V82651051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc875467a85780ad3d7aaf39178bb1c064de29020d7ed05faaa80f1b029fab8. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V81679748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc111aeda9b69e705a01dbd362fafb089fa04c4c873fdb0e5cf4463ffdca58350. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:17:34Z), 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/FR6V81679749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4d794f7cc1de9ae52aee79ddf5c181dbc7f1e1f824fcc5bd1d558adf0d240. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR6V81679751.
Narkotikam - Net! - Налей Мне В Бокал Любовь
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd7b0bc6870506b2adcd50c03eb6cd4b0d40b6f32840e07297e4365b27aaca0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FR6V81679755.
Всё будет хорошо (The Best of Verka Serduchka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe49c8a7626328de288a8c44739745fadc38f2dcb97ca77bdd7c232747ca482. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:04:42Z), 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/FR6V81698357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fde1e24df3c82e0722e6dd02471d850c930ebdadd4c4675fa234a114f9ca5c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FR6V82651043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3933890025b673f4c383a31b8c043e23e60c976f7ea26dca705ddd705f1faa. 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/FR6V82651053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b661c143144d936bbc58dd17a411e950dbed1b0095a21f80b41d2a7192b01b7. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/FR6V81698347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bd81f4659e2cf605ef556f4479e9ff719f0662b588b4fc35fb5578d955886a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR6V81662070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00a62fc945c68537d6de14efd567c9f0dbd5d88195df29a2bf91064f959c15. 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/FR6V82651092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14de976daa187f49eead1c8d2901bc8cf30016b11950f23b14821d7db4ae114. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:53:50Z), 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/UAMM12000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3033879ebca57444de21cb7c09d789557d2b705515fac9d2b701d00cffc770ea. 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/UAMM12100007.