Auser Musici is a period instrument ensemble centered in Pisa that specializes in early music repertory from the Tuscan region of Italy. History, Mission, and Activities The ensemble was founded in 1
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 0xd0695592087d70e107f8d68e1a2b2fcc96ab1c9b618e26cd948ab56dec25a2ea. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f597734-c30e-4b44-a4e1-b0ff6a1eeaa6.json and https://artists.proofprofile.net/proofs/artist/7f597734-c30e-4b44-a4e1-b0ff6a1eeaa6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Italian Baroque: The Instrumental Edition Vol. 1
Sonata No. 2 in G Minor, Op. 6: I. Grave adagio
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 0x674d1571e2f2853886d0aa24dbf1ef552405a52bc56755e4e28ea750dd7c015b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY331605470 — a six-check JSON result.
Sonata No. 2 in G Minor, Op. 6: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbffa635e7b81b1878e980fc0109d3fdb9f0bf89edfa69e3d91df5acd48ae800. 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/NLY331605471 — a six-check JSON result.
Sonata No. 2 in G Minor, Op. 6: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814a4d5f73761d8fe397c69c0d82c9a15e56c3ff320d799121814b39d1339385. 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/NLY331605472 — a six-check JSON result.
Sonata No. 2 in G Minor, Op. 6: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27102fe5e473c5ebb487c8e52b47400932f9468ad79b5295b478eba31903f765. 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/NLY331605473 — a six-check JSON result.
Sonata No. 9 in G Major, Op. 6: I. Grave adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d92f10ccfe050ee6f15d00e6cef386663291524e7032a921677e520aa4244. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/NLY331605474 — a six-check JSON result.
Sonata No. 9 in G Major, Op. 6: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841ccffc79038973cc81fc9488e12d4f665425f715381283c156240c0d3552b3. 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/NLY331605475 — a six-check JSON result.
Sonata No. 9 in G Major, Op. 6: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2644a6f4f5217aac04ddac14027d2070ea7122d9852798057895a47c4a9540. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331605476 — a six-check JSON result.
Sonata No. 9 in G Major, Op. 6: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5083ebf676bbde8a9fe44d66ac7a5f1f3a944f5ffc7bd3bfedbc8624f3e392a8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLY331605477 — a six-check JSON result.
Sonata No. 4 in D Minor, Op. 6: I. Grave adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cfcc7e365915d99de96b686bb79f316803b3d178c7778876f736f50a94729d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLY331605478 — a six-check JSON result.
Sonata No. 4 in D Minor, Op. 6: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0965ce017701f804d85c1665a0fa98169c31b8eba282c59ba508503e598a05. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLY331605479 — a six-check JSON result.
Sonata No. 5 in F Major, Op. 6: I. Grave adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8660532f738071a9d388f20706dabd49507458ed7c3d0fc22a16aba56e19c05. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLY331605482 — a six-check JSON result.
Sonata No. 5 in F Major, Op. 6: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7553c6e8c8a12cb8dd2907799a22578e12ab18867bac4bb7f29fe012b5306. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY331605483 — a six-check JSON result.
Sonata No. 5 in F Major, Op. 6: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f5e6c2018b12fa6799e3f2d4bec3c4d2c3da92392ab53705b2c94a53818d0f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY331605484 — a six-check JSON result.
Sonata No. 5 in F Major, Op. 6: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c547e56608dc38c93747d38efc167fed22bc6430ee3f08df9af5a5180676f73. 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/NLY331605485 — a six-check JSON result.
Sonata No. 8 in E Minor, Op. 6: I. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92866eef366e3277ba1a205b50fb79c5d512e2d9d3a1d1fa5afec474679e8d47. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLY331605486 — a six-check JSON result.
Sonata No. 8 in E Minor, Op. 6: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130ecdd2c3cfabfde0e9d8cf57994eb52b012f4399b8c05a470d6797956fb6d3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLY331605487 — a six-check JSON result.
Sonata No. 8 in E Minor, Op. 6: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83378cc06e88344b8cf7e2b5bdf7a8ba8bd813cba19e1414c6c03558fd861a35. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY331605489 — a six-check JSON result.
Sonata No. 3 in B-Flat Major: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e32dad57441db77444516b245f5a5c387a9c5cbb7f38cb6629108d7505b86f. 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/NLY331605492 — a six-check JSON result.
Oboe Concerto in D Minor, Op. 9 No. 2: I. Allegro non presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b098f9e470fde3242026811b0923d42ffe45ebaca8bce38e49914d80f4e941. 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/NLY331605494 — a six-check JSON result.
Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407ec7876e5871ac485ed2732bf3630ffa26ad4769759f66eebd8c6409542173. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/NLY331605495 — a six-check JSON result.
Oboe Concerto in D Major, Op. 7 No. 6: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa51105ef20774bf1179f0383c7698dfb7d63a6089729d2e96605d3df53f3464. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY331605500 — a six-check JSON result.
Concerto à 5 in C Major for Oboe and Strings, Op. 9 No. 5: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0a1adc4a707904c518b5f0d5e690ddba0f219fb91b21fdddce01987ad56b66. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331605511 — a six-check JSON result.
L'oracolo del fato: Qui ti scrivo o nome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbac3760a579cf72ffc7691cf129588f2ff683c7a3f986a2a02a2600c9be473. 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/ES7891800102 — a six-check JSON result.
Cherubini: Arias & Overtures from Florence to Paris
L’empio punito, Act I Scene 1: O che pena (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa602ff7dc9aff76c315dffd6761a1e37a2a1dc594d4986ef1e0f56edc51c6eca. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES7892001304 — a six-check JSON result.
Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": VI. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6244ed9f0c621e658018886f183cabc27f11e5993ea8da08a0bd9c63ea0727c7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES7892200306 — a six-check JSON result.
Flute Concerto in F Major, Op. 10 No. 5, RV 434 "Con sordino": II. Largo e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d882581c3fc6bfc2eb2ea72b27b61e14d4f533209c7dc60c5a8050cc41721a3. 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/ES7892200317 — a six-check JSON result.
Arie, Scherzi, Canzonette e Madrigali (1613-1616)
Boccherini: Il Giuseppe riconosciuto, G. 538
Porpora: Or sì m’avveggio, oh Amore – Cantatas for Soprano
Christian Joseph Lidarti: Violin Concertos
Lidarti: Musica da camera e concerto per clavicembalo