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 0x1b5d4fa302ae65c9097fc0e3c3ccc1c2ecb68f77c6273d0a839586eda9a5f971. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b02043fd-e9ea-46df-8c61-6e60206938f3.json and https://artists.proofprofile.net/proofs/artist/b02043fd-e9ea-46df-8c61-6e60206938f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mercadante, S.: Flute Concertos Nos. 1, 2 and 6
Flute Concerto No. 2 in E Minor, Op. 57: I. Allegro maestoso
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 0x0a11b82fc2d3bef107dd436ecdcc71e7875227bda46aba14c4b7079be2170f50. 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/USASX0737204.
Flute Concerto No. 2 in E Minor, Op. 57: II. Adagio
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Flute Concerto No. 2 in E Minor, Op. 57: III. Rondo: Allegro giusto
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Flute Concerto No. 6 in D Major: I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe8f707aa152d0b4e86d4e8c30e2c42503532823430324919f83643e74ccd6a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0737201.
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
Flute Concerto No. 6 in D Major: III. Polacca: Allegro brillante
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Beethoven, Böhm, Gariboldi, Galli, Doppler: Souvenir de Beethoven
Zani, Piacentino, Torti & Schiatti: Concerti per flauto archi e continuo
Bach, J.S.: Flute Sonatas, Bwv 1032, 1038 / Trio Sonata, Bwv 1039 / Musical Offering (Excerpts)
Mozart, W.A.: Violin Sonatas Nos. 17, 18, 24 and 27 (Arr. for Flute and Piano)
Flute Recital: Trevisani, Raffaele - Donizetti, G. / Sarasate, P. / Boehm, T. / Massenet, J. / Doppler, F. / Borne, F. (The Virtuoso Flute)
Albinoni, T.G.: Flute Concerto, Op. 9, No. 6 / Pergolesi, G.B.: Concerto for Flute and 2 Violins in G Major
Bach, C.P.E.: Flute Concertos in G Major / D Minor / A Major
Flute Concerto in D Minor, Wq. 22, H. 425: I. Allegro
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Mozart: Flute Concertos Nos. 1 and 2 / Concerto for Flute and Harp
Flute Concerto No. 2 in D Major, K. 314: I. Allegro aperto
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Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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Concerto for Flute and Harp in C Major, K. 299: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6ed941b980311a6e32c7161a72d6bf99ce70217cadc58bf99f15ee0d938ebd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550108200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821fe454e87a807a57be350301e8f483c531c0cdc589e6bd8bbe8e0c5470812a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRV770501000.
Les Quatres Saisons: Concerto En Fa Mineur, RV 297 "L'hiver": II. Largo
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Concerto Brandebourgeois No. 2 En Fa Majeur, BWV 1047: II. Andante
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad205c2a0986ca0ececfb983ad42d4646f137d34602fbda15bf6e84f91e109f0. 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/FRV770501003.
Orchestre Symphonique de la Radio Télévision de Moscou
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Peer Gynt Suite No. 1, Op. 46: I. Le Matin
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707c8e527609f6e8c63f5ec65eb7c3f1058f9cccaa29a02ebd88708ef6038964. 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/FRV770501013.
Concerto Pour Flûte Et Harpe En Do Majeur, K. 299: II. Andantino
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e9ad9323ce736716b45a4a303863275df28f458506ebec561eda78eb760951. 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/FRV770600063.
Flute Concerto No. 1 in G, K. 313: III. Rondo. Tempo di menuetto
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Largo: J.S. Bach, A. Vivaldi, C.P.E. Bach, G. P. Teleman,G.F. Händel, W.A.Mozart (Classical Masterpieces)
Concerto for Flute and Harp KV 299 C Major Andantino
Kammerorchester Arcata Stuttgart, Patrick Strub
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Symphony No.1 " Springsymphony " op. 38 B Flat Major Larghetto
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Best of Classic (25 Favourite Masterpieces)
Short Romantic Classics Vol. 1 (Classical Masterpieces)
A Midsummer Nights Dream (Classical Masterpieces)
Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): III. Rondeau: Allegro
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): I. Allegro
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): II. Adagio
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