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 0xfdb81148d5aa4133d216a3981112ca8a5ab58515706cf59a515b6bf4a4faa1a4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6126b887-62b8-4d43-a8c0-b1a128f4ee4c.json and https://artists.proofprofile.net/proofs/artist/6126b887-62b8-4d43-a8c0-b1a128f4ee4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Puccini: Madama Butterfly, Act 1: "E soffitto… e pareti" (Pinkerton, Goro)
Orchestra dell'Accademia Nazionale di Santa Cecilia
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 0x1647898089f49e3b94b2dde9b5c3404360a07ee1dc734abbdc3fa8a0929f7984. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802895.
Puccini: Madama Butterfly, Act 2, Scene 1: "C'è entrate" (Goro, Sharpless, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c201fd0be93aac4f3d28f684ad62ad0fe9af079767035ac1dbf94e36daef4b6. 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/GBAYC0802917.
Puccini: Madama Butterfly, Act 1: "Sorride Vostro Onore?" (Suzuki, Pinkerton, Goro, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d5e8eac98e7454057ecd41bd3dcfb2d9b98b557e3566113edaf1476c8d145a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC0802896.
Puccini: Madama Butterfly, Act 1: "Dovunque al mondo" (Pinkerton, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5a41234ba8d4b673841c089e1e29cb09005025bd63d6b7211e43380f0fd76c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0802897.
Puccini: Madama Butterfly, Act 2, Scene 1: "Ora a noi. Sedete qui" (Sharpless, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7ec0cb639946029b6084ad7bd238513221886d1b1ba703b6ad8d71e6f3f174. 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/GBAYC0802919.
Puccini: Madama Butterfly, Act 1: "Ed è bella la sposa?" (Sharpless, Goro, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8241a852f9e89472690d8bad550982d9db6a98515003689440f2d93be7d1091. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802898.
Puccini: Madama Butterfly, Act 2, Scene 1: "Due cose potrei far" (Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724eaa747413869bf2d8fe5ba0310ffa142221b0435c28dde477a79a6fe213d9. 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/GBAYC0802920.
Puccini: Madama Butterfly, Act 2, Scene 1: "Ah! m'ha scordata?" (Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2b4f1598ec707f684dbd289672ab667afdfa223db85939749f2cf2c440455. 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/GBAYC0802921.
Puccini: Madama Butterfly, Act 1: "Ah! Ah! quanto cielo! quanto mar!" (Chorus, Butterfly, Goro)
Coro dell'Accademia Nazionale Di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1821f71e2a88db52b67d734a0b87da4d38c4d6ac2bfe2eee9c8d067c2dd99e1b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC0802900.
Puccini: Madama Butterfly, Act 1: "Gran ventura" (Butterfly, Pinkerton, Sharpless, Goro, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7208199ae70a3f934dca26f51afd1bf72fdd612723c71feaedfba5fc49daded. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802901.
Puccini: Madama Butterfly, Act 1: "L'Imperial Commissario" (Goro, Pinkerton, Butterfly, Una cugina, Madre di Butterfly, Sharpless, Yakusidé, La Zia, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb4598d55aa995c065ab682deab58c82198311fa83262f1fe8617a437967337. 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/GBAYC0802902.
Puccini: Madama Butterfly, Act 1: "Vieni, amor mio!" (Pinkerton, Butterfly, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869e81eb996723c4c306aa09e1deed2d25fae0e7c044a0f783de0a029f2f15c0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBAYC0802903.
Puccini: Madama Butterfly, Act 1: "Ieri son salita tutta sola" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a3007a3d2d176d54ee7bc528f692b95805556c39179a3c0111d20fca68aece. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0802904.
Puccini: Madama Butterfly, Act 1: "Tutti zitti!" (Goro, Il Commissario, Butterfly, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c863cbfd802bdedbb64045eb68df02dc8a4321bc0612f18b80177574e05a963. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBAYC0802905.
Puccini: Madama Butterfly, Act 2, Scene 1: "Or vienmi ad adornar" (Butterfly, Suzuki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160ee26a93cb1ff39694687ea46bed45f6a11b0667b2c065ffc5f44f2644567f. 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/GBAYC0802927.
Puccini: Madama Butterfly, Act 1: "Auguri molti" (Il Commissario, Pinkerton, Sharpless, Ufficiale, Cugina, Madre, Zia, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf284592d8eb53dba3ad7d265cab04f411e872b78f64a0118a0182510e3c15ffb. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802906.
Puccini: Madama Butterfly, Act 1: "Viene la sera" (Pinkerton, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce90e4cc58a9a3e95496e579ec895a39af0d85e0375ab5a2958c51bf8a8df635. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802909.
Puccini: Madama Butterfly, Act 1: "Bimba dagli occhi pieni di malia" (Pinkerton, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06495a100507c64874a216daf6402011bed467e09cb7ce0380ed1e601f4e234b. 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/GBAYC0802910.
Puccini: Madama Butterfly, Act 1: "Vogliatemi bene, un bene piccolino" (Butterfly, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd515d125413358c010ec3c3c24ad272b7005a2f6cf11bebda58a268fb9e932d4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC0802911.
Puccini: Madama Butterfly, Act 2, Scene 2: "Povera Butterfly!" (Suzuki, Pinkerton, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906a62dd71299cd1189f6e397a39a12eb81f505a3e6d9dd15d9cb2ef828f36a5. 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/GBAYC0802935.
Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad523f5739dc0eef0671dc6ba280cc07e9701ea9b5f4242a04399f747712589. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC0802916.
Puccini: Madama Butterfly, Act 2, Scene 2: "Non ve l'avevo detto?" (Sharpless, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00749875bc6f34802fbdcfebec8c5d7e034d69151ec644289ce96c11bb3b86e. 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/GBAYC0802937.
Puccini: Madama Butterfly, Act 2, Scene 2: "Addio, fiorito asil" (Pinkerton, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf71d71d5868a72aab169c5fdf5e76bd0650991da8807bae21a8a51eb8153ac. 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/GBAYC0802938.
Puccini: Madama Butterfly, Act 2, Scene 2: "Vespa! Voglio che tu risponda" (Butterfly, Suzuki, Sharpless, Kate)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa103e013769fa0df5732fd56dc12787c4bc823c4bde9eac60f3ddf687c7e9c33. 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/GBAYC0802940.
Puccini: Madama Butterfly, Act 2: "Tu? tu piccolo Iddio!" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7bab435bb63a249bf0e936de85ead395d05a018f379a33e1a76e384d62a2f0. 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/GBAYC0802942.
Puccini: Madama Butterfly, Act 2, Scene 1: "Non lo sapete insomma" (Butterfly, Sharpless, Goro, Yamadori)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e9449ee742a5c90f46ee17249b4394a5dd64d8a64c96c13c9ebba65f986a10. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802918.
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
Boni, Brivio, Chaboud, Corelli, Tessarini, Valentini: Italian Flute Music of Early 18th Century (The Birth of Italian Transverse Flute Repertoire)
Sonata No. 6 in D Major, Op. 12: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76f4611359097e6c17fdbd1d696d4a16d33547a8420cbe2722e5f924ce99c14. 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/NLY331604210.
Sonata No. 6 in D Major, Op. 12: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58527605f62ce050709fb4e129b6ff7539686e78317f40890bbf2898963b886. 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/NLY331604211.
Sonata No. 6 in D Major, Op. 12: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067b83e3b625a30b346da387eaf3afe752d18b9795b0ce2067b3c1f0e1825e4f. 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/NLY331604212.
Sonata No. 6 in D Major, Op. 12: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8657ed7b6f9cbd82387934098e2149fc9fd57607a2ce05e8dfcf2d168fbce9d4. 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/NLY331604213.
Sonata No. 6 in D Major, Op. 12: V. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0514c613884e155831ebae9c1bd1db3ed30311bc670d6272019cba5b99a2497e. 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/NLY331604214.
Sonata No. 9 in D Major, Op. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59e0cb17189b6d82bf6ae201b431084e1f1ba0780cb534939903f7ea2b71da3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLY331604227.
Scarlatti, D. / Gervasio / Venier / Capponi / Valentini: Mandolin Sonatas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efaf74223eabbf895b340d583b3833496003f70927366464b1647c6926c8601. 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/ITN320905718.
Waltzes, Op. 70: No. 1 in G-Flat Major (Molto vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80b76b09623b0f94b560192215cefca0194d2a3090e91feee0150f2610de0c9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2102459.
Musiche del '700 per mandolino arciliuto e tiorba
Valentini: Recorder Sonatas, Op. 5, La Villeggiature
Roberto Valentini musica e... spettacolo
Dressurreiten - Musik für den Pferdesport
Claudio Ferrarini Flute & Accademia Farnese: Made in Naples