Erik George Sebastian Smith (25 March 19314 May 2004) was a German-born British record producer, pianist and harpsichordist. He produced over 90 opera recordings. His greatest legacy is the 1991 com
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 0x4a144d09ba2e1eaf3658e3b81debc312cf0347f94213375229e50ba1d41f0728. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5b15d8a-8b64-4a80-9c7c-56316fa4bc00.json and https://artists.proofprofile.net/proofs/artist/d5b15d8a-8b64-4a80-9c7c-56316fa4bc00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xa85a21494ee6daac47a0a4e89b18e52adeadaff286570cd7ef3de63d33488940. 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/NO2NJ1663010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a5a5668e8050a6d66143ed171c658fbfd70dd34b60fe9284a1827de9287e39. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO2NJ1663060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0b0dd7d469d67011bb7c6aca293c82bb48c9f0a0c5f38cc132d4598dcc1bdd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NO2NJ1663070.
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The Well-Tempered Clavier: Book I, BWV 846-869: I. Prelude
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Serenade in D, K.250 "Haffner": 4. Rondo (Allegro)
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Nocturne No. 2 in E-Flat Major, Op. 9 No. 2
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air "on the G String"
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12 Etudes, Op. 25: No. 9 In G Flat Major - "Butterfly Wings"
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Minuet In C Minor, BWV Anh. 121 (App. C)
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Himmelskönig, sei willkommen, BWV 182: I. Sonata
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15 Sinfonias, BWV 787-801: No. 13 in A Minor, BWV 799
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Divertimento in E-Flat Major, K. 166/159d: IV. Adagio
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24 Preludes, Op. 28: No. 16 in B-Flat Minor. Presto con fuoco
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Capriccio in B flat, BWV 992 "On the departure of a dear brother": 5. Allegro poco. Aria di Postiglione
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15 Three-part Inventions, BWV 787/801: No. 13 in A minor, BWV 799
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Mazurka No. 49 in A Minor Op. 68 No. 2: Lento
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6 Minuets K. 105 (attribution doubtful): No. 4 in G Major
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The Well-Tempered Clavier: Book 1, BWV. 846-869: Fugue in F Major, BWV. 856
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Prelude & Fugue in C Minor (Well-Tempered Clavier, Book I, No. 2), BWV 847: II. Fugue
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Musikalische Schlittenfahrt: 6. Andante, sempre piano: Das schüttelnde Pferd
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Cantata No. 142, BWV 142 "Uns ist ein Kind Geoboren": Concerto
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Les petits riens, K.app.10 (ballet): Gavotte joyeuse (Allegro)
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French Suite No. 6 in E Major, BWV 817: VII. Bourrée
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Das Wohltemperierte Klavier: Book 2, BWV 870-893: Fuge G-Dur, BWV 884
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Orchestral Suite No. 2 In B Minor, BWV 1067: 8. Badinerie
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15 Inventions, BWV 772-786: 12. Invention In A Major, BWV 783
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Six German Dances, K. 567: No. 1 in B-Flat Major
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Partita No. 1 in B flat, BWV 825: 6. Menuet II
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24 Préludes, Op. 28: 16. In B Flat Minor - Live
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Flute Sonata in C Major, BWV 1033: I. Andante - Presto
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Orgelbüchlein, BWV 599-644: Wir danken dir, Herr Jesu Christ, BWV 623
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15 Inventions, BWV 772-786: 9. Invention In F Minor, BWV 780
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Prelude and Fugue in C sharp (WTK, Book II, No. 3), BWV 872: Praeludium 3 - Allegro
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Piano Version of Ballet Music from Ascanio in Alba, K.Anh207: No. 2
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Fughetta super 'Wir glauben all'an einen Gott', BWV 681
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Orgelbüchlein: 39. Durch Adams Fall ist ganz verderbt, BWV 637
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Nocturne No. 13 in C Minor, Op. 48 No. 1 - Pt. 1
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Piano Sonata No. 15 in D Major, Op. 28 "Pastorale": III. Scherzo. Allegro vivace - Stereo Version
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Symphony No. 48 in D, K.120: 2. Andante grazioso
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15 Two-part Inventions, BWV 772/786: No. 5 in E flat, BWV 776
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Prelude and Fugue in B Flat Major (WTK, Book I, No. 21), BWV 866: I. Prelude
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Sonata for Keyboard and Violin in F Major, K. 30: I. Adagio
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17th Century & Beyond - From Baroque to Romantic
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