Carlo Ambrogio Lonati, baptized Giovanni Ambrogio Leinati, also Lunati; (c.1645 – c.1712) was an Italian composer, violinist and singer. Francesco Maria Veracini described him in 1760 as one of the m
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 0x32b79b96d781d1989b3c4b131bce3e98125b297541fe8d72a76067c078ead796. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b488c29b-4a48-404e-b499-cbcaf80212ad.json and https://artists.proofprofile.net/proofs/artist/b488c29b-4a48-404e-b499-cbcaf80212ad.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070ca5c9ef8bf2c92a3b3029566e39db3bbe10708a1562cc93543c6f16aef76. 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/ES7891800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d95bcb935749530e13df651f32bdee299bc998776ab1a2415b509bf5fb56372. 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/ES7891800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6337d5ade53e1863c7e1016e457e9ccdd9cdab7960017909e801794350545a7f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7891800205.
San Giovanni Battista: Soffin pur rabbiosi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b87d6bb39a1f2288cb5c5726ea65483673258f5155484f82ce23fb4159dcf7. 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/ES7891800206.
San Giovanni Battista: Io per me non cangerei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeeeba0619abecaa41637d9a2fda75adcfc5906e8bec7f42b23e1c90547d798f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7891800209.
II ratto delle Sabine: Sorgi o bella da le piume
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7a3b8853da2085a68a253bea0e4f79a896ea8bd2701b1e2bbcf3580c4fc245. 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/ES7891800212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cfa4d81fbd4ac0e340b6a5c052f49d1b610fa695f2833ea8fb0ee6a70508f0. 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/ES7891800225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ade9f98e74a859537f8f2515813afe2c3c279a30f0f0b6835ebe103fa87346. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7891800213.
Florish in the Key: The Solo Violin in London 1650-1700
L'arte della scordatura: Violin Works from Biber to Tartini
Canario Instrucción de Música sobre la guitarra española, Zaragoza, 1674
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba28ebc6b86ebd5031933ad198cc8ba9ec0661557efa1809c0b80e0d1d52a0e. 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/ITD922005503.
Artificiosus Concentus Pro Camera: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd14e62c33c0ac541d34a5d1ea9c67549d8d2364db2fed8aa7465ae57fcab77b. 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/NLA460915127.
Artificiosus Concentus Pro Camera: III. Saraband
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab59d482cc31ec194a44e881799d87619a1d8488f5db6ef528daf02bfde77028. 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/NLA460915129.
Artificiosus Concentus Pro Camera: V. Minuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c033339e5639df46504a1f424d747a9a46ee08e8ca245a308f41fa02f476e15. 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/NLA460915131.
Artificiosus Concentus Pro Camera: X. Aria variata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17a8734eeeabecb5890099252949b705994fa83ea73e0adcc42ba421061aa93. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460915136.
The Di Martinelli Manuscript: Violin Sonatas of the Late 17th Century
Lonati, C.A.: Violin Sonatas Nos. 2, 3, 4, 10, 11 and 12
The Italian Connection: Vivaldi; Corelli; Geminiani; Lonati; Veracini; Matteis
Trio Sonata in D 'Bush aboon Traquair': 2nd movement: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbbbb5a62c3a53cfd5d315ad826120f7ae4acc539248f982d6bea34e7726da8. 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/GBUM70903771.
Sonata in G minor: 2nd movement: Allemanda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f8db7c731fd916abf0f6ad9ebf9c56680606a74c9e504feebb5a8594cee035. 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/GBUM70903773.
Trio Sonata in A, Op. 3 No. 12: 1st movement: Allegro - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ee4c364080cb9346cb07972de0e1dab4b47b3f47e317b55c664eb39f50fd6f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70903777.
Trio Sonata in D minor for 2 Violins and Continuo, Op. 1/8 , RV 6 4: 1st movement: Preludio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b7b62ee61482f40a5627ed963be1acbbf943b26ba7789d9a72da7bc21afca9. 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/GBUM70903793.
Sonata in G minor: 4th movement: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb293225cc5ac34f6fe0b57c2827246ae8e71a7d7b7ebce28708f47f35832df4a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70903775.
Violino solo un arco tra Italia e Austria
Gemma dimenticata － Musica italiana per violino dei secoli XVII e XVIII
Stradella, A.: Sinfonias - Mcc 2, 17, 20, 22 / Colista, L.: Sinfonias - W-K 21, 30, 32 / Lonati, C.A.: Sinfonias (Accademia Per Musica)