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 0x0e0fce901640b13d0434a45c40795b928781657c6e80312fb2c855e0e326986d. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/595f88c7-d178-4847-bf7b-06f356b9b564.json and https://artists.proofprofile.net/proofs/artist/595f88c7-d178-4847-bf7b-06f356b9b564.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Monteverdi: L'Orfeo, SV 318, Prologue: Toccata
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 0xeb112819423e417ca156991cb0fcd62bdbbcc897281cb764160efe5277edbf5a. 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/GBAYC0302630.
Handel: Serse, HWV 40, Act 1: Arioso. "Ombra mai fù" (Serse)
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Monteverdi: L'Incoronazione di Poppea, SV 308, Act 3: "Pur ti miro" (Poppea, Nerone)
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Handel: Solomon, HWV 67, Act 3: Sinfonia "The Arrival of the Queen of Sheba"
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Bach The Orchestral Suites, Triple Concerto
Bach, JS: Orchestral Suite No. 1 in C Major, BWV 1066: I. Ouverture
Boston Early Music Festival Orchestra/Andrew Parrott
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Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: V. Polonaise & Double
Christopher Krueger/Boston Early Music Festival Orchestra/Andrew Parrott
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Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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Bach, JS: Suite No. 3 in D Major, BWV 1068: II. Air
Orchestra of the Boston Early Music Festival
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: III. Gavottes I & II
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Pachelbel's Canon & Other Baroque Favourites
Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: V. Gigue
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Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: VI. Menuet
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Vivaldi: Gloria in D Major, RV 589 - Bach: Magnificat in D Major, BWV 243
Orchestral Suite No. 1 in C Major, BWV 1066: V. Menuets I & II
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Suite No. 3 in D Major, BWV 1068: II. Air
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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Bach: Brandenburg Concertos Nos. 1, 2 & 3
Bach: The Complete Brandenburg Concertos
Brandenburg Concerto No. 1 in F Major, BWV 1046: I. (Allegro)
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Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto - Trio - Polonaise - Trio
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. (Allegro)
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. (Allegro)
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. (Allegro)
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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Bach: Brandenburg Concertos Nos. 4, 5 & 6
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La traviata: Di Provenza il mar, il suol (Orch. & Arr. E. Kunzel & C. Beck)
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Gianni Schicci, SC 88: O mio babbino caro
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La traviata, Act I: "Brindisi" (Arr. E. Kunzel & C. Beck)
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Springtime Symphonies: Bach, Puccini, Vivaldi
Gianni Schicci, SC 88: O mio babbino caro (Orch. C. Beck, S. Bernstein & E. Kunzel)
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12 Concerti grossi After Corelli, No. 4 in F Major, H. 135: III. Vivace
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The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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La bohème, SC 67: Quando m'en vo' (Orch. C. Beck, S. Bernstein & E. Kunzel)
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The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto. Tempo impetuoso d'estate
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Bach, J.S.: Musical Offering / Flute Sonata, Bwv 1035 / 14 Verschiedene Canones
J.S. Bach: The Art of Fugue, BWV 1080 (Live)
Beautiful Wedding: Classical Music for the Wedding Dinner
Leclair: Chamber Music With Flute (Complete)
Mozart, W.A.: Clarinet Quintet, K. 581, K. Anh. 91 / Flute Quartets Nos. 2 and 4
Yehudi Wyner: On This Most Voluptuous Night
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