Fernando Previtali (16 February 1907 in Adria, Italy – 1 August 1985 in Rome, Italy) was an Italian conductor, particularly associated with the Italian repertory, especially Verdi operas. He studied
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 0x2259b250514124cdccc5976fa7ec0941d5238e0a840e42c29ec1e220de30074f. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c823d9a-dc54-45df-bd2f-ee9e2323084d.json and https://artists.proofprofile.net/proofs/artist/8c823d9a-dc54-45df-bd2f-ee9e2323084d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chorus and Orchestra of the Colon Theatre
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 0x0db441ca2746f9a5e27cea451f1dbef9cc414e093ac5677da3fefbde0aae624e. 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/USB8U2201508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53391930dfa57b99948cb761615d73ee5626190b51bccd84336d74eefe61884a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USB8U2201509.
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
Rome Opera House Orchestra & Chorus... Highlights from Verdi's La Traviata
Franco Corelli: Power and Beauty, Vol. 6 (1956-1961)
Masterpieces Presents Giuseppe Verdi: La Traviata
Puccini: Turandot (Remastered 2023) [Live]
Fernando Previtali dirige Ludwig van Beethoven: Sinfonie 1 & 9; Napoli, 1972 (Live recording; Napoli, 1972)
The Complete Cetra Solo Recordings & Selected Additional 78s
Verdi: La forza del destino (The Power of Fate)
Maria di Rohan: Act II: Son leggiero, e ver, d'amore (Gondi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948af315fa72106210fa1bf69136c2a4fbea1f74b5b0d054834dd979b498507f. 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/USB8U1506424.
Donizetti: Il duca d' Alba (The Duke of Alba) [Sung in Italian]
Il Mito dell'Opera - Virginia Zeani (Live Recordings 1957-1969)
I Lombardi alla Prima Crociata (Giuseppe Verdi)