Mykola Mykolayovych Hobdych (born March 28, 1961) is a Ukrainian choral conductor, known for being the founder and director of the Kyiv Chamber Choir.Микола Гобдич (Mykola Hobdych) Profile on parafia.
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 0x1e7cf86d71cdb11e346388017dd17d977920c9be5f9f9e41755d20446323cb90. 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/e11e246e-948c-4a3d-8615-a0e8447cece6.json and https://artists.proofprofile.net/proofs/artist/e11e246e-948c-4a3d-8615-a0e8447cece6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maidan 2014 / Cycle I: I. National Anthem
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 0x970d7d86cf744a59e26ec4c2d00f7420a699e27b0db9e85150f9aeac85b09a2a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEB331635901.
Maidan 2014 / Cycle I: II. And Glory, Mountains Blue, to You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804fa516579c24ac8c3f9893192c6019cbac0be4f5841ce5cc3b0e8b36a0d131. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEB331635902.
Maidan 2014 / Cycle I: III. Give Rest, O Christ, to Thy Servant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eed8e75e2af946187aa8fcb527707c303ca270e431fe79a6002fd55f18d46e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331635903.
Maidan 2014 / Cycle II: I. National Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c5271e367bbb7c0d89d80ec98fcc1d94fa2e3bebf1cebf88835529db862343. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:04:28Z), 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/DEB331635904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7288273d6f1acbbb74b9fc099957a1e6027636a6e63d159d81fd948d10e61a1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:34:05Z), 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/DEB331635905.
Maidan 2014 / Cycle III: II. The Lord’s Prayer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f36e709e25dfe1f40c95c29340d03293f6d9e2d583d9c1db58a4e2adac4265e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:10:34Z), 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/DEB331635908.
Maidan 2014 / Cycle IV: I. National Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0cf2b2b673b8d102199f24c45a69654fbaf1853cdec726d7e73936367a8cd0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB331635911.
Maidan 2014 / Cycle IV: III. Prayer for Ukraine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c427d1c2b3cb85c601c094e2e90c5d6026be396fe64c5cdb8e1d9915023b53. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB331635913.
Maidan 2014 / Cycle IV: IV. National Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8df0925989e584fe4f0538a47fe4897d3bbef0ff4798c3aa2463b0af76eef18. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB331635914.
Four Songs: III. A Cherry Orchard by the House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb32738b7785e0b51f643d21c4fd4a45cbd11d0d0801f8c0dbc716245cc000aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEB331635918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b56f798b864b9feb21b18f660c229c7624cbd697f0b6be969673e43d26b98f8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB331635920.
Romuald Twardowski - Liturgy of St John Chrysostom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2d2267e92ec7927134b0e3700fc0e6fd7dad4f912721ef965349822fbceb05. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB330827902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f2bf368183575d865b1a23701387445180bda4402eab7a69f7a9230bf955f3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB330611701.
Liturgical Chants: 2. Four Spiritual Songs: Christmas Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e3e2e5782c526ecd4ea89c4d58c4f0cc0f736bff0024ef48f3512f4c8297f3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB330611702.
Tchaikovsky: Liturgy of St. John Chrysostom, Op. 41
Silvestrov: Maidan 2014 / Cycle IV: II. Elegy
Silvestrov: Maidan 2014 / Cycle I: III. Give Rest, O Christ, to Thy Servant
The Nutcracker, Act II: Dance of Sugar Plum Fairy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2951012faf8fa25c2a8106083adcb0c6f371e6e2af66b38973b949d85727a417. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKI199339803.