Maria Chiara (born 24 November 1939) is an Italian lyric soprano. Early life and education Chiara was born on 24 November 1939 in Oderzo, Italy. She studied at the Venice Conservatory and in Turin
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 0x63c2e19496c99df30ff09e66591f19d332273444bc79313f538ab6776a93af3d. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a74b086a-bc2b-4c9a-a958-e28b9e2728f1.json and https://artists.proofprofile.net/proofs/artist/a74b086a-bc2b-4c9a-a958-e28b9e2728f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La traviata / Act 1: Libiamo ne'lieti calici (Brindisi)
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 0xbb8b95cd3a832e5adb9bcccfe7d5ddf28fd60883eb73e33497e52ff675e143c1. 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/GBF071401270.
Orchestra del Teatro Comunale di Bologna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedb93464436d5d3455d2b029d4eb8220c6f3bb9927ad40a2f19b5ed3178505c. 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/GBF078911382.
Wolf-Ferrari: Il segreto di Sussana (Opera Gala – Volume 19)
Wolf-Ferrari Il segreto di Susanna and Giuseppe Verdi Arias
La Wally / Act 1: "Ebben? Ne andrò lontana"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7d7e10133424f8a2655bf2738dfb228ba95464171e80b36ef0ca9017bce8f1. 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/GBF077710610.
Best of Opera - Die 50 größten Opern-Arien
Decca Sound: The Analogue Years 1969 – 1980
La fanciulla del West, Act III: Ch'ella mi creda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8712bb1c0f1c76201291e0ab4a05022a201801f4a9281f7734595e197377c6. 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/GBF077900160.
GRANDI VOCI - LEO NUCCI Una collana dedicata con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono eccellenza tecnica e artist
GRANDI VOCI -MARIA CHIARA Una collana dedicata con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono eccellenza tecnica e arti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbc977a38a625a4a9c958dd3353d37c575c94f3e135049c527898379762917a. 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/ITJ049801346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0368d14470b1548d6bab5004bfea1d65d13efa1852b3bacaf19d0fe86ae1fc41. 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/ITC940300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbc7955923d3b269489f3bd15c78df7d0e1552a468defc079520c7e48288bdf. 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/ITC940200546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4564755eada686cd354c8fa1413d3d453e379e2e18439095d7bda08647b17d11. 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/ITJ049900266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ed606609b23f85349056d0238dd161c514bc4594d8f87bd7055e78c48f79f7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ITC940200545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880259ed67155186e993a0aa1fa6647f1382cb0e5006ee9f2885f6ec3762432. 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/ITC941000630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8785f0f02ac71e61abba858b4dbc66d9d67ecad498ac182d2d12b4a5b94475b. 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/ITC941704277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4fa1e364c097ede1bd0fa903a95993401a53f0299b858f94725e1b3cb7729. 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/ITC940300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb625b8fef86870bb928832f9482f44414f41d40e0dc7d0b2f378b2f7d30a3d5a. 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/ITJ040000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb77b52383e6cac18735958716658fb3ef6d4d526859bf418a8943e8fa5a08e2. 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/ITC940400192.
Les pêcheurs de perles, WD 13 / Act 1: "Je crois entendre encore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfa3513b2cdb4bf5eb2703c8bfac416e462db960294cc7a88e8478d71a49c9a. 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/NLA505300090.
200 anni di Giuseppe Verdi: Aida, Nabucco
Andromeda / Tintarella di luna - Batinta (feat. Maria Chiara)
Verdi: Aida (I Capolavori di Opera Lirica...)
Natale per voi bimbi (I migliori classici per i vostri bambini)