Renato Cellini (; April 24, 1912 – March 25, 1967) was an Italian opera conductor. Studies and Early Career Cellini's father Ezio Cellini was an operatic stage director who worked with Arturo Tosca
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 0x893df70447ead0569b21f7c4a668ed13ecb25152a8b28a305f7a61b7112706d0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ea589b2-6bef-418a-ba01-6d5e476740fa.json and https://artists.proofprofile.net/proofs/artist/6ea589b2-6bef-418a-ba01-6d5e476740fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mascagni: Cavalleria Rusticana (Milanov, Bjorling) (1953)
Leoncavallo: Pagliacci (Bjorling / Angeles) (1953)
Il mito dell'opera: Giuseppe Di Stefano — The Early Years, Vol. 2
Jussi Björling Collection, Vol. 4: Opera Arias & Duets (Recordings 1945-1951)
Verdi: Trovatore (Il) (Bjorling, Milanov, Cellini) (1952)
Mascagni: Cavalleria Rusticana - Leoncavallo: I Pagliacci
Verdi: Don Carlo (Christoff, Filippeschi, Gobbi) (1954)
Verdi: Forza Del Destino (La) (Callas, Tucker, Serafin) (1954)
La forza del destino: Act II Scene 2: La Vergine degli Angeli (Chorus, Leonora)
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 0x846c50c2a0bd105adb12c8d72c0b84efca4333e797701cb71400c276dba94b54. 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/HKI190779122.
Donizetti: Lucia Di Lammermoor (Callas, Di Stefano, Gobbi) (1953)
Mascaeni:Cavalleria Rusticana Gasamtaufnahme
Puccini: La bohème, extraits (Mono Version)
VERDI: La Forza del Destino (Highlights)
Il mito dell'opera: Giuseppe Valdengo (Recorded 1948-1964)
Opera Arias (Tenor): Bjorling, Jussi - Mascagni, P. / Puccini, G. / Gounod, C.-F. / Godard, B. / Verdi, G. / Bizet, G. (1948-1951)
Les pecheurs de perles (The Pearl Fishers), Act I: Au fond du temple saint
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabba798e35cb47b19121b8b92b2b7dc08309a4ff34ea1633bca8eb5fe418bac6. 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/USB8U1005606.
Rossini, G.: Barber of Seville (The) [Opera] (1949)
Massenet, J.: Werther (Sung in Italian) [Opera] (1949)
Mascagni: Cavalleria rusticana - Leoncavallo: Paillasse (Mono Version)
Récital Jussi Björling - Mascagni: Cavalleria rusticana (Mono Version)
Mascagni: Cavalleria Rusticana (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24acf3fd841e1cf587e25e9914824b938bdeaced853ee119290baac5d7efc58c. 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/USSM11409477.
Cavalleria Rusticana: O Lola c'hai di latti la commisa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c959712c31c9c6d64accb579d2352db307a12ca23ab31b962872a60328bc1d. 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/USSM11409478.
Cavalleria Rusticana: Regina Coeli, laetare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c61a16f6124d113c51c89e79cac70ea8be8d3a318f4b23290c899a888e9c3f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USSM11409483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349db34cc204aeaf4ada4bc33a228efb0c0a1bcd7e7a6298d81899777315de5e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM11409492.
Nabucco: Va, pensiero, sull'ali dorate (Chorus of the Hebrew Slaves)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a064ab8479c28b40317080fb8af0792bb808f6071a6e7b618fde4099531bf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBC15900238.
J'aime pas le classique mais ca j'aime bien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349db34cc204aeaf4ada4bc33a228efb0c0a1bcd7e7a6298d81899777315de5e. 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/USSM11409492.
Ich mag keine Klassik, aber das gefällt mir!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a064ab8479c28b40317080fb8af0792bb808f6071a6e7b618fde4099531bf. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USBC15900238.
Les Plus Grands Airs De La Musique Classique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a064ab8479c28b40317080fb8af0792bb808f6071a6e7b618fde4099531bf. 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/USBC15900238.
Pagliacci, Act I: Vesti la giubba (Canio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e0b6db8baf4370c706ad40e28e362b503897ea05a3f13b9042a4d39d64beda. 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/GBAYC5300066.