Benita Valente (October 19, 1934 – October 24, 2025) was an American soprano in opera, lieder, chamber music and oratorio. She appeared at the Metropolitan Opera in New York City from 1973 through 199
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 0x41ee55faa6aa9f9f3cdf7143dbac0122578e938c096ffd94b5c9a78a22ff7992. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/356265a2-4807-4bfa-b32e-1f9f38641582.json and https://artists.proofprofile.net/proofs/artist/356265a2-4807-4bfa-b32e-1f9f38641582.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Villa-Lobos: Bachiana brasileira No. 5, W 389 - Sibelius: Luonnotar, Op. 70 - Ravel: Shéhérazade
Piano Sonata No. 20 in A Major, D. 959: II. Andantino
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 0x140469c48e7b92e979b6f97ad6c12d9ea458ac8cd508b4ed080f0a43f08faa93. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USSM16600407 — a six-check JSON result.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": IV. Tema con variazioni. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf66ff0079e2f79271c846458b64e992b2150af21ebc2b6755739b6c0b8ee73b. 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/USSM16701564 — a six-check JSON result.
Piano Trio in E-Flat Major, D. 929 (Op.100): II. Andante con moto
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Great Singers of the 20th Century, Vol. 2
Spanisches Liederbuch, Pt. 2 "Weltliche Lieder": No. 12, In dem Schatten meiner Locken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cdaf567f0f3855bc201503a5ca4ea7c232f387a9cb83874ce02d2865ae14c9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USCRS1595123 — a six-check JSON result.
Schubert: String Quintet in C Major, Op. 163, D. 956 & The Shepherd on the Rock, Op. Posth. 129, D. 965
Marlboro Music Festival: 50th Anniversary Album (Live)
Great Singers of the 20th Century, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e56fe2e1a24753062ad03fd629aa5fb942d1d492b06d22d199f7e560a04ded. 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/DEC767600012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7273a2ca0216a18a81ec45db878dd9c0eba421f9fd2a13ce26e0c5658e6a1798. 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/USBC15700458 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624976d8b13108fa3eb3ef48022a06ddf7b4f537c36cca1a4c4d603cb1d2b11a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC767900070 — a six-check JSON result.
The Most Fabulous Classical Christmas Album Ever!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b86adeeaaeb1f6df8ed2ef41ec4ee05fb141168447942500475c8edd79d205f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USBC15700194 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b06fbe77f1376228d5dd15a2fcba1a01e184755ff76d484677a8181828e5fc. 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/USBC16700181 — a six-check JSON result.
Beethoven: Symphony No. 9 in D Minor, Op. 125 (Live)
Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1999a526d6b4346b50947cfdffd370f32c9d7b328b24a7ee77f8baf6467112. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USXM71600004 — a six-check JSON result.
Live from the Marlboro Music Festival - Respighi, Cuckson & Shostakovich
Larsen: String Symphony - Songs of Light and Love
Schoenberg: Pierrot Lunaire - Dallapiccola: Concerto per la notte di Natale dell'anno & Parole di San Paolo
Love Songs & Lullabies for Guitar and Voice
Roberto Gerhard, Schahrazada, Cancionero de Pedrell
Schoenberg: The Five String Quartets (2024 Remastered Version)
Brahms: Trio for Piano, Violin and Horn, Op. 40 - Schubert: Auf dem Strom, D 943
Brahms: Liebeslieder-Walzer, Op. 52 - Schubert: Der Hirt auf dem Felsen, D 965
Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
Atlanta Symphony Orchestra Chamber Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1292d489cbdbd3d6ddcc4cada40ba3422363e1d28c65d9b8b688ca6e55ae2f89. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USTE10301212 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: II. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f37066d8d7c96e2359c891e801ec3fe512a23db406b0438ec1b0a24bb98aea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10302212 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: III. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c4f4fa533c37b312731c2f899e8e2bf81379827a7982261f9cae4451e6f1f9. 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/USTE10303212 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: IV. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d3851e0fa37532072ed88522cb9cef7ac5a12245ba13311c09ec61c85aa12. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USTE10304212 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: V. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfcda4ddb3f0f70d706a75e9ffb91ceeeda7764b9ec5d0ff79366310f357c78. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USTE10305212 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: VI. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59607d54d0d2e2baaff12bd1538d88fda6dfbb3aa5044d5cad9e714e13b712ab. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USTE10306212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: I. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e833945442e65af42150c150554972dc9fb26fb1347ffd0239927cc19147e7c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USTE10307212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: II. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab90f87a3cff4e706f03a1d98deb30514f4451525bc45b1a0efa8e10763b2cfe. 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/USTE10308212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: III. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05c6ae3a401d392c813d1d99e62d73b32b19f6b33871610f068bae601095a5. 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/USTE10309212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: IV. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883217c1619bf5ba2235a2f2dd5f829bdb0e107f566223eecb35311312753dd2. 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/USTE10310212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: V. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951afff4837322f3788d26bc26d41cb46c315757bdbba9fd06e9d90688403199. 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/USTE10311212 — a six-check JSON result.
Mass No. 6 in E-Flat Major, D. 950: VI. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0975867e8158e7ee41bb912467ffecb7ee127f7f7e087cad4018856aa8da70. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USTE10312212 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0774f85b80462982616d4919e9bb7f816ba020a48eaddfb2f7d9e2553beb94. 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/USBB15601036 — a six-check JSON result.
Leonard Slatkin conducts Vaughan Williams
The Juilliard String Quartet Plays Schoenberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d2ced1046a6b5848475d3d6663ed0d80db6d22d8902740d5d4eddd006cbfbe. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBARU8800096 — a six-check JSON result.
Bach Italian Transcriptions: Concerto for Four Harpsichords (Vivaldi)- Tilge, Höchster, meine Sünden (Pergolesi)
Concerto in A Minor for Four Harpsichords, BWV 1065: I. Allegro
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Haydn: The Seven Last Words of Christ, Hob. XX:2
The Seven Last Words of Christ, Hob. XX:2 (Version for Vocal Ensemble & String Quartet): No. 1, Vater im Himmel, o sieh hernieder - Voice
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Brahms: Liebeslieder Walzer, Op. 52; Schubert: The Shepherd On the Rock, Op. 129 (Der Hirt auf dem Felsen, D 965)
The Art of Robert Bloom: Selected Arias with Oboe Obbligato, Vol. II
Music of Schoenberg, Dallapiccola, Crumb, Boulez & Others
Jan De Gaetani in Concert, Vol. 3 (Live)