Valiano Natali (9 December 1918 – 30 March 2000) was an Italian operatic tenor. Biography Valiano was the son of Guido and Giovanna Lunardi; he was born in Agliana, a suburb of the Tuscan city of P
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 0x4b16c723e94eda9d3310a3e63cd6c97d2616cb8638ddd3685d6fdfbdf3ee8c9b. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adc6fa27-8edc-499e-9f9f-cf21691621b2.json and https://artists.proofprofile.net/proofs/artist/adc6fa27-8edc-499e-9f9f-cf21691621b2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Lucia di Lammermoor: Act I: Regnava nel silenzio (Lucia, Alisa)
Orchestra del Maggio Musicale Fiorentino
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 0x21c2dd4314cbbbc3cebefdc88df77166a0c92c65dad3f131915f97d799d8dcad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU240454363 — a six-check JSON result.
Puccini: Les opéras - La discothèque idéale de Diapason, Vol. 10
Lucia di Lammermoor (1997 Digital Remaster), ATTO PRIMO, Scena prima: Tu sei turbato! ... E n'ho ben d' onde (Normanno/Enrico/Raimondo)
Gino Sarri/Tito Gobbi/Orchestra del Maggio Musicale Fiorentino/Raffaele Arié/Tullio Serafin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212b72823c710e8ad170caeb61d33c218b50a2c490ed5454654033ccba6dadc6. 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/GBAYC9700640 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO SECONDO, Scena prima: Soffriva nel pianto ... Une folle t'accese (Lucia/Enrico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7165c5c56ac4452fdc9604a842f2ed45505110174a775edca4242a9e91162b23. 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/GBAYC9700657 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO PRIMO, Scena seconda: Ancor non giunse! (Lucia/Alisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb48d923dd7f58a76e89b27d4934362ac0ac0c50b95e04fb6a7695ce1386ce. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC9700645 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO PRIMO, Scena seconda: Regnava nel silenzio alta la notte e bruna (Lucia/Alisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a92c440b0c1309f1d960fa5f4bec30d54d4341e0f1cd1d2e803299dfab432f6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC9700646 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO PRIMO, Scena seconda: Egli s'avanza ... Lucia, perdona se ad ora inusitata (Alisa/Edgardo/Lucia)
Anna Maria Canali/Giuseppe di Stefano/Orchestra del Maggio Musicale Fiorentino/Maria Callas/Tullio Serafin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58c61321f2c7b8470e419d3b139f373d8cc7a9fcc5d46dc487203513ba4e655. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9700648 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO PRIMO, Scena seconda: Verrano a te sull'aura i miei sospiri ardenti (Lucia/Edgardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d986102e4fb268d9b6fd4002dba4fe71a74f9f7c8fa057af98e95325499b1be. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAYC9700652 — a six-check JSON result.
Lucia di Lammermoor (1997 Digital Remaster), ATTO TERZO, Scena prima: Il dolce suono mi colpi di sua voce! ... Ardon gli incensi (Lucia/Raimondo/Normanno/Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebb546e150a4b85d056ce1110d7d889aa34ef2d15ab0725dd3b1ef00d27e90b. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBAYC9700673 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 3: No. 33 "Spargi d'amaro pianto" (Lucia, Raimondo, Enrico, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dab5c1f4b8b734542e407f816b90813bbfddffa66da0ee060a5e37eb132d61a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9700674 — a six-check JSON result.
Donizetti: Lucia di Lammermoor (1953 - Serafin) - Callas Remastered
Donizetti: Lucia di Lammermoor, Act 1: "Quando rapito in estasi" (Lucia, Alisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073e9b76489c0ef73145522fb654f769c01f22852c06a44a6a7fc7b10cc5b370. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400112 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 1: "Sulla tomba che rinserra il tradito genitore" (Edgardo, Lucia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9321a82ff15ed488f3c73384b040faa627780078207df6066ec51089e5de77ea. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBAYC1450000 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 2: "Chi mi frena in tal momento" (Edgardo, Enrico, Lucia, Raimondo, Arturo, Alisa, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbd6181fc653f7f35c9dfc9a9a3a04c7811d20db3bc0e066a2e6a07f4a96a6b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAYC1450012 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 3: "Il dolce suono mi colpì di sua voce!" - "Ardon gli incensi" (Lucia, Raimondo, Normanno, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2df2bb97fa254bf0d784a5086464f69693dd721d133f346aa789985c510273. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBAYC1450019 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 3: "Spargi d'amaro pianto" (Lucia, Raimondo, Coro, Enrico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6747880edb7339fd47d10002ea7f3898d8641da11cb4be08eb655c4f798dccee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1450020 — a six-check JSON result.
Maria Callas - The Platinum Collection 2
La Forza del Destino, ATTO QUARTO: Pace, pace mio Dio!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e1e3c2219df1d7e64c3a4fbe9e4324c56d57ec1722f8b044982107cf31d31f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBAYC9702648 — a six-check JSON result.
Mefistofele (2005 Digital Remaster): L'altra notte in fondo al mare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130e11cb8f07adca7451520afd0039659f4aac01a4af3728579c14ec615308f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAYC0500568 — a six-check JSON result.
Donizetti: Lucia Di Lammermoor (Callas, Di Stefano, Gobbi) (1953)
Verdi Historical Opera Edition, Vol. 6: Simon Boccanegra, Aroldo & Un Ballo in Maschera
Cherubini: Les Abencérages (Live Recording 1956)
Spontini, G.: Agnes Von Hohenstaufen [Opera] (Udovick) (1954)