Daishin Kashimoto (樫本 大進; Kashimoto Daishin; born 27 March 1979) is a Japanese classical violinist. Since 2009, he has been the first concertmaster of the Berlin Philharmonic. Kashimoto is fluent in
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 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 0x05ffa10a905b1ef0bbfc2ca425c731f0e03ae1a21e560284de974bb9fcbbb9bc. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0380f60-386d-464f-963b-60bc974ff3d5.json and https://artists.proofprofile.net/proofs/artist/e0380f60-386d-464f-963b-60bc974ff3d5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Beethoven: Violin Sonata No. 5 "Spring" - Franck: Violin Sonata
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 0x173d2ca967af05f4650d11bf4fae0614f25ebe3b8270b167b17e220b0968f59d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1958808 — a six-check JSON result.
Violin Concerto in D Major, Op. 77: I. Allegro non troppo
Brahms: Violin Concerto in D Major, Op. 77
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1555de8e2cfdfae8056ec5c8e638671881ccfaf9dc1e7f3cae371d4da452cee3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10604740 — a six-check JSON result.
Violin Concerto in D Major, Op. 77: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca848ebfb8a1546133f91936d9fba956ce294026679be46888f676b9dede8779. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10604741 — a six-check JSON result.
Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67051eb68bc81d17aa758a10576da0c57a211d87a8d798753aa346721e9f3ac. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10604742 — a six-check JSON result.
Trio for Flute, Violin and Piano: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e23d62cedcfc85caf98b8d577e88b889f4bb796f637b608d0eea4333a21fab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074601 — a six-check JSON result.
Trio for Flute, Violin and Piano: II. Andante sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd69a255610ca2792dafca6ec134a1a3cf127342ad350c6371eb67f93c1f8c14. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074602 — a six-check JSON result.
Trio for Flute, Violin and Piano: III. Allegro vivace con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd9a998fcb4586a6bff6837da58b7cef5d751992230cbd856c442f8c00e56f0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074603 — a six-check JSON result.
Valzer sul nome Bach: No. 1, Circus-Valzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc776c7c4450d0786e3d66c691b1f2757e743105d0b3cb767fba44dea6a7e0b3e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074604 — a six-check JSON result.
Valzer sul nome Bach: No. 2, Valzer-Carillon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4459ca278b8936ca5f44399b656891f4e8743b0dc0a98ce5314e7a8ed4cc9ed. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074605 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30925cdb87c484f7ff1e19a80de0cd9179a7292b287a675c04f3d812196e825c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074607 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0462223688f6f0f8db044534f65b6069e5c527a0622a48240cbf75ea3ec9a84e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2074609 — a six-check JSON result.
Ernest Chausson - Concert pour violon, piano et quatuor à cordes en ré majeur Op. 21: I - Décidé
Concert de Chausson - Quintette de Vierne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90468da22535683b724c96d1d072821f6df2cec5fff813797d5b38178367b11a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR07X2400131 — a six-check JSON result.
Ernest Chausson - Concert pour violon, piano et quatuor à cordes en ré majeur Op. 21: II - Sicilienne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4134bb42eabef97f059145804056ea830bbaa18aba314b3fe52fbc6fd044fd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR07X2400132 — a six-check JSON result.
Ernest Chausson - Concert pour violon, piano et quatuor à cordes en ré majeur Op. 21: III - Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20ad73ab181991d9f0559bc20800dc223693fd8086a5296882ef315d2091ceb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR07X2400133 — a six-check JSON result.
Ernest Chausson - Concert pour violon, piano et quatuor à cordes en ré majeur Op. 21: IV - Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17896b4f3cdca91eea538d2ed05ed6a7b512d27eea84d1bca89bd8ea9210b0af. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR07X2400134 — a six-check JSON result.