Mariia Dovhaiuk (; born 3 November 2000), professionally known as Domiy is a Ukrainian singer, musician, author and performer of her own songs. Biography Mariia Dovhaiuk was born on 3 November 2000 i
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 0x1346d7def5448b85ca18bb8835fb201bf582e1a379bb1fd1e8bad73e619471b5. 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/532d1ecd-4b0a-4a2e-9862-18a95a37b164.json and https://artists.proofprofile.net/proofs/artist/532d1ecd-4b0a-4a2e-9862-18a95a37b164.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 0x2edf45f9b003eaec7e7a7a6cb4dd6d9e5def4c4d56c490ce3feac649b6886f5b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:14Z), 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/QM4TW2444565.
Нагадай (Kava Music & Vitaly500St Remix)
Нагадай - Kava Music & VITALY500ST Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a2a404c928c45f28a2673b5710be3b6cf07e87923e4868d0b2efdafd1185f3. 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/QM6MZ2423720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdf32d348248a1724c7614c863aae62fcb450de571d534275789e143636af29. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2528701.