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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ee1f816ddd5cbd72afab7b94625235988f7e655c757812af716271ae5c32f7. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99ead6e5-e91d-4d0c-91b4-638f86b4fa1d.json and https://artists.proofprofile.net/proofs/artist/99ead6e5-e91d-4d0c-91b4-638f86b4fa1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alessandro Scarlatti: Cantatas & Recorder Concertos
Concerto No. 4 in G Major, BWV 1049: I. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229c7f8ed3dc6c2bd5f79f99d12c4d732df11c6a3a5a08e4dca4ef54c1c170f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLN580572711.
J.S. Bach: Music for Recorder & Harpsichord
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfba6b771b42f480fca258c35a48b88fd985a2af76f16e7cc0876214991e0c0c. 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/NLY332000002.
O Mensch, Bewein Dein Suende Gross in E-Flat Major, BWV 622
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Sonata in G Major, BWV 1039: II. Allegro ma mon presto
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Sonata in G Major, BWV 1039: III. Adagio e piano
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Italian Baroque: The Instrumental Edition Vol. 5
Italian Baroque: The Instrumental Edition Vol. 2
Boismortier: Music for Flute, Viola da Gamba and B.C.
Quantz: Concertos & Trio Sonatas with Recorder
Concerto for 2 Flutes in G Minor, QV6:a: I. Allegro
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Trio Sonata in C Major, QV2:nh.3: I. Affettuoso
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Trio Sonata in C Major, QV2:nh.3: II. Alla breve
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Trio Sonata in C Major, QV2:nh.3: III. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b4ced495ab90d8ed68cc7ce1ef3e8e3be2a099dbb0a7d2559241a6db15f5a1. 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/NLY331705577.
Vivaldi & Chedeville: Complete Recorder Sonatas from "Il Pastor Fido"
Telemann: Cantatas and Chamber Music with Recorder
C.P.E. Bach: Recorder Concertos - Chamber Music
Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": II. Sarabande. Die schlaffende Thetis
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Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": III. Bourée. Die erwachende Thetis
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Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": IV. Loure. Der verliebte Neptunus
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Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": VII. Der sturmende Aeolus
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Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": VIII. Menuet. Der angenehme Zephir
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Orchestral Suite in C Major, TWV 55:C3 "Hamburger Ebb und Fluth": X. Canarie. Die lustigen Bots-Leute
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Recorder Concerto in C Major, TWV 51:C1: I. Allegretto
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Recorder Concerto in C Major, TWV 51:C1: II. Allegro
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Recorder Concerto in C Major, TWV 51:C1: III. Andante
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Telemann: Double Concertos / (Overture) Suite in A Minor
Bach, J.S.: Trio Sonatas / Flute Sonatas
Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": I. Poco allegro
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440bf22db6cece303df2ddb0fed06b1c9b7bb852b0d160d1ccca6036c1f5c578. 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/DEAD61630003.
Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": II. Adagio
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Keyboard Sonata in A-Flat Major, Wq. 49 No. 2 "Wurttemberg No. 2": II. Adagio
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": III. Allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": I. Poco allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": II. Adagio
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": III. Presto
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Keyboard Sonata in C Minor, Wq. 48 No. 4 "Prussian Sonata No. 4": II. Adagio
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Keyboard Sonata in A Major, Wq. 48 No. 6 "Prussian Sonata No. 6": II. Adagio
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Keyboard Concerto in C Major, Wq. 112 No. 1: II. Largo
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Fasch / Graupner / Graun: Recorder Sonatas and Concertos