Pavel Kolesnikov () (born 25 February 1989) is a Russian pianist and chamber musician. Life Born in Novosibirsk, Kolesnikov, the son of scientists, began learning the piano and violin at the age of
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 0x2f8386b8d474d1b6d42680cb5ce4a3adf04f173c432a582649519ad7025a9d01. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a0098c8-5be8-4d69-b1d8-b026bc118229.json and https://artists.proofprofile.net/proofs/artist/7a0098c8-5be8-4d69-b1d8-b026bc118229.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sibelius, Grieg & Scriabine: Edition Klavier-Festival Ruhr, Vol. 34
Beethoven & Friends: Classics by the Great Composers
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 0x4e7cb879d80befcc6c36711c0caf27cd9f7b0d014c684db1083fa8520b4191f1. 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/GBAJY1823701.
Divertissement à la hongroise, D. 818, Op. 54: III. Allegretto
Schubert: Divertissement à la Hongroise, Fantasie in F Minor - Desyatnikov: Trompe-l'œil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06437f68cdd6704603fae28df69c4dd35c378f0b7994825cc1f47a17e664e6c7. 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/FR7JM2404030.
Fantasie in F Minor, D. 940, Op. 103: III. Scherzo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815beeb46c58f9c13896f3b23f417ed03e03aad951cb0f021dda9b84f2cffe1d. 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/FR7JM2404070.
Fantasie in F Minor, D. 940, Op. 103: IV. Finale. Allegro molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb546cba564a1275137a8fcbcfa9f08653003a2711e89313cec66d47b3219d5d0. 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/FR7JM2404080.
The Seasons, Op. 37a: II. February. Carnaval. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b62f5b8dfe7d1798b1f2d89adc2da349d790ba9ebd71be6b6c2764f998cec. 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/GBAJY1402802.
The Seasons, Op. 37a: III. March. Chant de l'alouette. Andantino espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61ade7e05d73285ade28f85314ba283471b8df02e669face20950ea8ead0998. 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/GBAJY1402803.
Divertissement à la hongroise, D. 818, Op. 54: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5efdfeeb5d324a5104255fed025d69f7f6816e960ee049160d1fdd76019e8ee. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR7JM2404010.
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
Divertissement à la hongroise, D. 818, Op. 54: II. Marcia. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7395924a30d4498524bc8d5a469c3b2128c30acf342fbe6c631bcc8cc25660. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR7JM2404020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b614808d73c094f01a2bf440089f6910569273e8893a2dd492587fd355bdf9. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FR7JM2404040.
Fantasie in F Minor, D. 940, Op. 103: I. Allegro molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e39bfc5f46d5c2e2d13725e0bd8dfec310c85cf236991bc05e0822a3a98bf7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR7JM2404050.
Fantasie in F Minor, D. 940, Op. 103: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c410250dde364139978ef61b81552be3ad53f24c186093fe6b5db639ff0e72. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR7JM2404060.