Nir Kabaretti (; born February 5, 1968, in Holon) is an Israeli orchestra conductor. Kabaretti is music director of the Santa Barbara Symphony"Meet the Music Makers - Nir Kabaretti" Santa Barbara Sym
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 0x2fb845f39331a24a12b2e28faf3ca4480312783979cc3d41ebed3e481a44d5d9. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2727566-8ac5-43c6-bd59-e78ba1cca17f.json and https://artists.proofprofile.net/proofs/artist/c2727566-8ac5-43c6-bd59-e78ba1cca17f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x282e39308cc0d3648e9e72373080cbc48458ad3298ec29e8e244841718d038ae. 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/HKI192413809.
Andante e Allegro con fuoco: I. Andante –
War Silence - Rare Italian Piano Concertos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d5ec28a2e18eea79c8e37fbe69fee830c5a699c08d4e205828786906fb4c8a. 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/GBAJY2445801.
Andante e Allegro con fuoco: II. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0dccb1d53863be76140ad79845aadca499393586ba1ab349c49cf80b4760c3. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBAJY2445802.
Piccolo Concerto per Muriel Couvreux: I. Pastorale. Andantino, un poco flessibile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253e9d6978e5dc5fb9b1c03fa584a51206b66cfb2b2563bc10ffbc838456f425. 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/GBAJY2445803.
Piccolo Concerto per Muriel Couvreux: II. Girotondo. Allegro ma non tanto, molto ritmato –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f07e94ad6f13736d119651e38e2a68dcf50c0c9da54b5e6c580427b2d46020c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBAJY2445804.
Piccolo Concerto per Muriel Couvreux: III. Ripresa. Moderato, con poesia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206370ffb47e3e7510aca6a2c5f92348d6599349ba5c9ae5a9eeb72dbe5f72c7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBAJY2445805.
Piccolo Concerto per Muriel Couvreux: IV. Candeza. Allegro, molto sostenuto –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908291a26700e58eaa5954b50f3366d97a93f65c32ab7b6c7bffd6995f98236e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBAJY2445806.
Piccolo Concerto per Muriel Couvreux: V. Notturno. Lentamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e46d3603a79597655f18ae89a3870c0f1050d4785f12260fc4380d7e9d7d78. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBAJY2445807.
Piccolo Concerto per Muriel Couvreux: VI. Finale. Allegro non troppo, marcato e sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f9ad6e9b548e5266e184d6df05ec510af7cfc6aacff6a7f568b80e62c77d31. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBAJY2445808.
Concerto per pianoforte e orchestra: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330491ee159a968f932480236f7be83bccbe57e81764d9528e0bf534579ca54e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBAJY2445809.
Concerto per pianoforte e orchestra: II. Andante maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97cdbe50d2fb6fc47fbf28876c7684927477716097ebbeb8c65663a1c6b1857. 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/GBAJY2445810.
Concerto per pianoforte e orchestra: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ff627df9a054978476218004a6fdc4f1373b2cd376f0039065c9e125abdb5. 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/GBAJY2445811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975b08340774408e1eab8a38fbe8306fef74d9639a5848e5addcc206773e6b06. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBAJY2445812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50165a53393842d0b6b2690f65b2554cc0d8cf86b3ff3d2d5112ea4dbab79f97. 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/GBAJY2445813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a1a0046e9307d800cac2cd7574fc6072b5ffda1029f9280428a8dbfbc8ac6f. 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/GBAJY2445814.
Dallapiccola: Piccolo Concerto per Muriel Couvreux: I. Pastorale. Andantino, un poco flessibile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253e9d6978e5dc5fb9b1c03fa584a51206b66cfb2b2563bc10ffbc838456f425. 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/GBAJY2445803.
Fano: Andante e Allegro con fuoco: I. Andante –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d5ec28a2e18eea79c8e37fbe69fee830c5a699c08d4e205828786906fb4c8a. 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/GBAJY2445801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a1a0046e9307d800cac2cd7574fc6072b5ffda1029f9280428a8dbfbc8ac6f. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/GBAJY2445814.