Kirill Troussov (born ) is a German violinist and violin teacher based in Munich, Germany. Career Kirill Troussov began playing the violin at the age of four and was taught by Irina Etigon at the
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 0x72fc04c78d4a05396bdcfe53e12f2239ee0901c04256c3c5e3323e0ea845bd0e. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66846bfe-558e-49ce-9ba2-6c33ce4f868b.json and https://artists.proofprofile.net/proofs/artist/66846bfe-558e-49ce-9ba2-6c33ce4f868b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Concerto No. 1 in G Minor, Op. 25: I. Molto allegro con fuoco - Live
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 0xa98533cf404a346ca69554887131b0044ab56326e0eac3e0ce8aa58197ba8d60. 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/DEN960902821.
Piano Concerto No. 1 in G Minor, Op. 41: II. Andante - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fc6e571a66a8512bf6048d8c87e6f42fe72d90be83910f177e0918658c1961. 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/DEN960902822.
Piano Concerto No. 1 in G Minor, Op. 57: III. Presto – Molto allegro e vivace - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ca0902139fa706f2304357b4e1802dde244727829eec79d68a9646eb19ca0f. 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/DEN960902823.
Piano Sextet in D Major, Op. 110: II. Adagio - Live at Verbier Festival, Switzerland, 2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2adc76780de940301108f0ea73f843400a52007e31f2c84f201241a7d4823e. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEN962200312.
Piano Sextet in D Major, Op. 110: I. Allegro vivace - Live at Verbier Festival, Switzerland, 2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf331d495d83f1f9beb9520366bc4e9bc49d9fc32709e88eb7b17ff0c5f4cd389. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:15:45Z), 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/DEN962200311.
Piano Quartet No. 2 in E-Flat Major, Op. 87, B. 162: II. Lento - Live
Dvořák: Piano Quartet No. 2 in E-Flat Major, Op. 87, B. 162 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a41a02fba768dac9e2faed6843aa692fb1486129338299bddb787a1746a88b3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBYDS2300267.
Piano Trio in A Minor, Op. 50: II. Tema con variazioni: Tema (Andante con moto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b997697fb62c33d672816ad5048a69b8836a7cfe94f9ae86c5fce7904970c0. 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/GBYDS2300342.