is a Japanese-born violinist. He was the concertmaster and artistic director of the Netherlands Bach Society from 2018 to 2023. Early life and education Sato was born in Tokyo, Japan. When he was
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 0xa18de480497a2686755e494bb1f961472b49c79a55160be3c0a695913fe4684d. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b36df4cb-668a-4e4a-bebf-4fb03ad3c24e.json and https://artists.proofprofile.net/proofs/artist/b36df4cb-668a-4e4a-bebf-4fb03ad3c24e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sinfonia Pastorale in D Major, Op. 4/2: II. Larghetto
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
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Noels pour les instruments H 534: No. 3, Or nous dites, Marie
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Concerto grosso in G Minor, Op. 6/8 "Fatto per la notte DI Natale": VI. Pastorale Ad Libitum
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The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4 RV 297 "L'inverno" ("Winter"): II. Largo e pizziccati Forte
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Flute Concerto in D Major, Op. 10, No. 3, RV 428 "Il gardellino": II. Cantabile
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Weihnachtsoratorium BWV 248, 2. Teil: Sinfonia
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Trumpet Concerto in D major, TWV 51:D7: I. Adagio
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Oboe Concerto in G major, TWV 51:G3: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd20a14c5d8d67ebf02a4b3334a2ce591bcadbff01beb059dc8b6ec914127a89. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380004351 — a six-check JSON result.
Concerto in C Major Op. 3 No. 12 "Pastorale per il Santissimo Natale": 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508a3fc44e0a7ceedae17bf36d32b65a42063c7101336b58a7293435812ac45d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DES380001015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a5b2ccf6597808345db3d96e50dc03360c261cb2b058d3fa70850f640d8609. 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/DES380004347 — a six-check JSON result.
Symphony No. 28 in C Major, K. 200: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10098480a46b43415731fee6a31ae748d0c2444fa719aec0238cbeb0679f592b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380210002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadb8160bdabedcf88d94230666ab990cceb6303371e8850b3613a464c6de86f. 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/DES380004354 — a six-check JSON result.
Concerto grosso f-moll "Weihnachtskonzert": 1. Largo
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Schübler-Chorales in E-Flat Major, Op. 5 No.1, BWV 645: Wachet auf, ruft uns die Stimme (Arr. By Enrique Crespo)
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Oboe Concerto No. 3 in G minor, HWV 287: III. Sarabande: Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77054977c11d0822c941d4f38efce9061b9f0badd8781022453ae5d6cd913af. 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/DES380004358 — a six-check JSON result.
Musae Sinoniae IV: III. Es ist ein' Ros entsprungen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307d3a9efe3b450a9f847d009aa22c2850f65c8febaa9197208acb5bb0821c5d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DES380001039 — a six-check JSON result.
Concerto in C Major Op. 3 No. 12 "Pastorale per il Santissimo Natale": 1. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6d8e40bdd26fbb930b67b8f25535f956562437cbeb2003fe09c807324b4341. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380001014 — a six-check JSON result.
Concerto grosso f-moll "Weihnachtskonzert": 2. Grave
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Concerto for 2 Violins in D Minor, BWV 1043: I. Vivace
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Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: I. Allegro moderato
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Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c2a036d178bb6036dfd0d41d851629be8296917f05cd6f4aa30209fc057e89. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800908 — a six-check JSON result.
Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
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Bach, JS: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
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Bach, JS: Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
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Bach, JS: Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
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Bach, JS: Concerto for 2 Violins in D Minor, BWV 1043: I. Vivace
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Bach, JS: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
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Bach, JS: Concerto for 2 Violins in D Minor, BWV 1043: III. Allegro
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Bach, JS / Arr Forkel: Violin Concerto No. 5 in G Minor, BWV 1056R: I. Allegro (Arr. Forkel)
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Bach, JS / Arr Forkel: Violin Concerto No. 5 in G Minor, BWV 1056R: II. Largo (Arr. Forkel)
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Bach, JS / Arr Forkel: Violin Concerto No. 5 in G Minor, BWV 1056R: III. Presto (Arr. Forkel)
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