Renato Fasano (Naples, August 21, 1902 – Rome, August 3, 1979) was an Italian conductor and musicologist particularly associated with 18th-century Italian works. Having studied music in his native Na
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 0x9bdd0cfb56fe6fe83a1f3eecfa7334f8e9a57d92c67a6641facefd4fe06da6c7. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d456453-9ca9-4a38-9ba3-f2f7c87cb97e.json and https://artists.proofprofile.net/proofs/artist/5d456453-9ca9-4a38-9ba3-f2f7c87cb97e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Great Musicians, Great Music: I Virtuosi di Roma Perform Vivaldi
Vivaldi: L'estro armonico (Stereo Version)
Vivaldi: The Concerto Album - The Four Seasons & L'estro armonico
Vivaldi: L'estro armonico, Violin Concerto in D Major, Op. 3 No. 9, RV 230: III. Allegro
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 0x6e87143a1bfb5b1137fd962ff00dd14e46b7e944ee44e9203d6f1ab846db889f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9602707 — a six-check JSON result.
Vivaldi: L'estro armonico, Concerto for Four Violins in E Minor, Op. 3 No. 4, RV 550: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54273f99c46c8fdb7a625db4fcefedd540e5330d379ae228c307fd5c40dde27. 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/GBAYC9602685 — a six-check JSON result.
Vivaldi: L'estro armonico, Violin Concerto in A Minor, Op. 3 No. 6, RV 356: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe414d0bb0b80f863ae4f666d2f35f91c3b9875a5e4660a3817baafd659026a5. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9602692 — a six-check JSON result.
Vivaldi: Les Quatre Saisons (Stereo Version)
Violin Concerto No. 9 in D Major, RV. 230: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e87143a1bfb5b1137fd962ff00dd14e46b7e944ee44e9203d6f1ab846db889f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBAYC9602707 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2392e68782f847cbd52c8bcf33aa375414b28d65bf1e6809eb350bdaae74362. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704548 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54273f99c46c8fdb7a625db4fcefedd540e5330d379ae228c307fd5c40dde27. 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/GBAYC9602685 — a six-check JSON result.
Concerto for Strings in A Major, RV. 158: I Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa244877a8c642209f95026191a8ea51b1d18d7eccad3312465dd333a2c4b5945. 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/GBAYC0703371 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3314356d1bc426c6bfbb3773d9f450f46b8b1209953e6cdda2cb8d5b8937119e. 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/GBAYC0704554 — a six-check JSON result.
Concerto for 2 Violins in A Minor, RV. 522: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6fd840e1d2cfbddca06a1857c5fac9260bcf695f36d7ec89e8e7e0011fc9d9. 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/GBAYC9602701 — a six-check JSON result.
Concerto for Strings in A Major, RV. 158: II. Andante molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ad6da30b07c898dab4b6d0ca1a38915aec33a3686f4dc0cc722cc9c9ce1432. 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/GBAYC0703372 — a six-check JSON result.
Concerto for Strings in A Major, RV. 158: III Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49526f335a13deb5b74099f0084d10645c22adbc544a331d0dc5337a476c426. 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/GBAYC0703373 — a six-check JSON result.
Violin Concerto in E-Flat Major, RV 253 "La tempesta di mare": I. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc55b873315325a66de6b8e450716fe48fb686a7e9db5abaa4ee8655e5ad106. 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/GBAYC0704564 — a six-check JSON result.
Violin Concerto in E-Flat Major, RV 253 "La tempesta di mare": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32443067cd75ae0ff83548cdd1a7f52f5aeed24d3128d7297b9c87427a90b82d. 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/GBAYC0704565 — a six-check JSON result.
Violin Concerto No. 3 in F Major, RV 293 "Autumn": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4436e7517a63f8688351388cb8435d121755b0660e7027263b4e3bf657430ad9. 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/GBAYC0704556 — a six-check JSON result.
Violin Concerto No. 3 in F Major, RV 293 "Autumn": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eacdca5d4d3668588253ccb5bbf17e0b40211478f80ce8494d1aaa42c52baa. 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/GBAYC0704558 — a six-check JSON result.
Violin Concerto No. 4 in F Minor, RV 297 "Winter": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2daa63cb4e64db44c473a5a7783b9129d8ab1386ac3d5bac9e6a9450b9a3a2. 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/GBAYC0704562 — a six-check JSON result.
Violin Concerto in G Major, RV 310: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007cffb36dfbca1a3b708d3fa5fa985714dd91f95434739535ad9e07e297bfb9. 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/GBAYC9602679 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe955785436c6d3f05ab63ecda50e9ee2872c82c4f65832d294aefc005cab7de4. 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/GBAYC0704552 — a six-check JSON result.