Hibla Levarsovna Gerzmava (Abkhaz: Хьыбла Леуарса-иҧҳа Герзмаа; ; born 6 January 1970) is an Abkhazian-Russian operatic soprano who currently resides in Moscow. Education and career Since 1995 Gerzm
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 0x8411860455b54a190488e517be54dc1241200245a3490a8d22e0c7d8b1723e49. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d33a466e-1a8e-4406-b1e5-6b42fbafab54.json and https://artists.proofprofile.net/proofs/artist/d33a466e-1a8e-4406-b1e5-6b42fbafab54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アヴェ・マリア -ゲルズマーワ ソプラノ名曲集-
Janáček: Glagolitic Mass; Taras Bulba; Sinfonietta; The Fiddler’s Child
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 0x64b83c076f7e11f76374f17e765211dfb43d021eeaff17544ca41361e2e8b80a. 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/GBBBA1800130.
Glagolitic Mass, JW 3/9: 6. Agnece Bozij
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9897b12cc891923518b9567db272de4bfc069a41c8af0dd8e76450d7acfe79. 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/GBBBA1800131.
Евгений Онегин, соч. 24, действие I картина 1: No. 1, Дуэт и квартет "Слыхали ль вы"
Национальный филармонический оркестр России
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f69a6a37bf2335b9458ec6b4e19e17461ea293934c8bdd66d0ca33b2d587a2. 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/RUA1D2205342.
Евгений Онегин, соч. 24, действие I картина 2: No. 8, Интродукция и сцена с няней
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d56938a733dbc4634373ca27a3cbd3518420a98000464e7e817f6cce634dd2d. 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/RUA1D2205349.
Евгений Онегин, соч. 24, действие I картина 2: No. 9, Сцена письма Татьяны "Пускай погибну я"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8735ab975f0d367edf783a3f89df2de9d57f48ebd3919c2979da2425d9e3cac3. 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/RUA1D2205350.
Glagolitic Mass, JW 3/9: 2. Gospodi pomiluji
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb642876fc90d5c31a8ff775ff4fb0b59cf3a2052f17b2b7b86e418f856af694d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBBBA1800128.
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 0x77dc9095af68c2ed129bcb92bc2c9a1daa81480e6522f5ff34f6ffa4160d63b4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBBBA1800129.
Евгений Онегин, соч. 24, действие I картина 1: No. 3a, Сцена "Как я люблю под звуки песен" - No. 3b, Ариозо Ольги "Я не способна к грусти томной"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3162fbc178c8eb1dda151c2ed45125205453ad8679433f3f59180a9b3cd60ef. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/RUA1D2205344.
Евгений Онегин, соч. 24, действие I картина 1: No. 4, Сцена "Ну ты, моя вострушка"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27738463f9422ba4fdf595217b6ceb9a72871fde6cbcdda8f6cdc9f0759baaa0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/RUA1D2205345.
Евгений Онегин, соч. 24, действие I картина 1: No. 5a, Сцена и квартет "Mes-dames! Я на себя взял смелость"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1750f4a720b2b4268b0677df46f18cfb5649db9bad1415021c3c6f2c6589d22. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/RUA1D2205346.
Евгений Онегин, соч. 24, действие I картина 1: No. 6a, Сцена "Как счастлив, как счастлив я" - No. 6b, Ариозо Ленского "Я люблю Вас. Я люблю Вас, Ольга"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30750eba156831edcd4fe71fd14c3ee9b156f429aab68b0d6d1f8cd3529504d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/RUA1D2205347.
Евгений Онегин, соч. 24, действие I картина 3: No. 12a, Сцена "Здесь он, здесь Евгений" - No. 12b, Сцена "Вы мне писали, не отпирайтесь" - No. 12c, Ария Онегина "Когда бы жизнь домашним круго
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03e47879a2bee86b17c1b47fa386cf3f6fb34a7e47958502b6147be1abd42e5. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/RUA1D2205353.