Nino Gvetadze is a Georgian classical concert pianist. Early life Born and raised in Tbilisi, Georgia, Gvetadze studied in Tbilisi State Conservatoire and later in The Hague and Conservatorium van Am
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 0x518a307bdb8101a63d5e557010371ee8049a31be3346caafbe0450dc4857bdbe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a717daff-d9eb-49bf-be41-e6bf0a1764e5.json and https://artists.proofprofile.net/proofs/artist/a717daff-d9eb-49bf-be41-e6bf0a1764e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
6 Violin Sonatas, Op. 10b No. 1 in F Major, J. 99: I. Allegro
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 0x5a97f51f0cdbcb81a37f76b295f7466e806802e873dd3717da98bec2cc03e202. 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/HKI191602601.
6 Violin Sonatas, Op. 10b No. 1 in F Major, J. 99: II. Romanza: Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177aeb865443a47be33fd4ea0b9e2f09bf42eb60918a99e13198f30b24a845de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI191602602.
6 Violin Sonatas, Op. 10b No. 1 in F Major, J. 99: III. Rondo: Amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edc309c6e5a25384be1836b67ebd1ce30edb71b76dd371be605f1747e6c8e07. 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/HKI191602603.
6 Violin Sonatas, Op. 10b No. 2 in G Major, J. 100: I. Carattere Espagnuolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb98683a300429535cbed4041876b735a1cbce51d6921d7843be158b042ca871. 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/HKI191602604.
6 Violin Sonatas, Op. 10b No. 2 in G Major, J. 100: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0869e44c9acfa989af015c55339dd1313ba0fda173d56fe72daff9f8c4a72011. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI191602605.
6 Violin Sonatas, Op. 10b No. 2 in G Major, J. 100: III. Air Polonais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0ed9155d83d392fe2e9d5ad7448cc7b2290b0f5e5296c112b271970495f2ae. 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/HKI191602606.
6 Violin Sonatas, Op. 10b No. 3 in D Minor, J. 101: I. Air Russe: Allegretto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694a1a10064d3f2c8601354e5f41217d4c33dceb61809c098c2bdb63ff236fd8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI191602607.
6 Violin Sonatas, Op. 10b No. 3 in D Minor, J. 101: II. Rondo: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbf87b34e0a271be503a66d2cda8b16ffa6f63437993cda7cb30838aed12928. 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/HKI191602608.
6 Violin Sonatas, Op. 10b No. 4 in E-Flat Major, J. 102: II. Rondo: Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a385b5e863af2d18f6ade4f4c0b1e4a92b540df18027f08b20bb22feb5b35c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:22:00Z), 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/HKI191602610.
6 Violin Sonatas, Op. 10b No. 5 in F Major, J. 103: I. Theme from the opera Silvana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa67c2ab6271d799fa1d891b5154ca8384715caa5e00400f26aef2adc7d8a5b3. 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/HKI191602611.
6 Violin Sonatas, Op. 10b No. 5 in F Major, J. 103: II. Finale siciliano: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef72529d57f4609d645e0c588af2a71d143202bec624d1fca497d97ea2f97c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKI191602612.
6 Violin Sonatas, Op. 10b No. 6 in C Major, J. 104: I. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebf48d79a8cadafd3cf3e6a1eadaa3cddbfc24cb16d35352ede4fc1449c693e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKI191602613.
6 Violin Sonatas, Op. 10b No. 6 in C Major, J. 104: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c925f83884539cf1cc233a967fdcb39b90bb399432369f67c560c657fe3431. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKI191602614.
6 Violin Sonatas, Op. 10b No. 6 in C Major, J. 104: III. Polacca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30345ab1347a5de5405b1352469ce35df6489facba5eeec95c8a16c088d23906. 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/HKI191602615.
6 Violin Sonatas, Op. 10b No. 4 in E-Flat Major, J. 102: I. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe490cdbeb56255080c764d36fccf6ec52b2163a1b2115b901008907c71de1f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKI191602609.
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