1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a827afd97547ebb61f70205d9f174ec8e9ab2161cd2f578da40ad492dc3805e. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49f89ede-b3b8-4368-a28d-5f44adc7f5fb.json and https://artists.proofprofile.net/proofs/artist/49f89ede-b3b8-4368-a28d-5f44adc7f5fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony 38 In D, K 504 : II. Andante "Prague"
Violin Concerto in E, Op. 81, RV 269 : II. Largo "The Four Seasons" (Spring)
Concerto in C for Strings, RV 115: II. Larghetto "Ripieno"
Concerto für Oboe, Streicher und Basso Continuo No. 3 in B, Op. 7 : II. Adagio
Concerto in A for Strings, RV 160 : II. Andante
Suite No. 1 in F-Dur : Adagio e staccato "Wassermusik"
Violin Concerto in E Flat, RV 256 : II. Andante "Il Ritiro"
Concerto Grossi No. 6 G-Moll : Larghetto "Musette"
Concerto in A Minor for two Violins, Op. 38, RV 522 : II. Larghetto e spirituoso "L'Estro Armonico 8"
Music for The Royal Fireworks, HWV 351 : "La Paix"
Concerto Ripieno in C, RV 115 : I. Allegro molto
Symphony No. 5 in B Flat, D 485 : II. Andante con moto
Concerto in A Minor for two Violins, Op. 38, RV 522 : II. Larghetto "L'Estro Armonico No. 8"
Concerto Ripieno in C, RV 115 : II. Larghetto
Concerto Grosso in D, Op. 64 : II. Adagio, vivace
Violin Concerto in F Minor, Op. 84, RV 297 : II. Largo "The Four Seasons" (Winter)
Concerto Grosso No. 1 in G, Op. 61, HWV 319 : III. Adagio
Concerto in B Minor for four Violins and Cello, Op. 310, RV 580 : II. Largo "L'Estro Armonico No. 10"
Music for The Royal Fireworks, HWV 351 : "La Rejouissance"
Concerto Madrigalesco in D Minor, R 129 : II. Larghetto
Concerto für Violine und Orchester in D-dur, Op. 77 : Adagio
Violin Concerto in E, Op. 81, RV 269 : I. Allegro "The Four Seasons" (Spring)
Symphonie No. 38 in D-Dur in D Prag, KV 504 : Andante
Violin Concerto in G Minor, Op. 82, RV 315 : III. Presto "The Four Seasons" (Summer)
Allegro Moderato Wassermusik Suite No. 1 F-Dur
Violin Concerto in F, Op. 83, RV 293 : II. Adagio Molto "The Four Seasons" (Autumn)
Violin Concerto in E Flat, RV 256 : I. Allegro "Il Ritiro"
Concerto in G, RV 151 : II. Adagio "Alla rustica"
Concerto Grosso No. 2 in F, Op. 62, HWV 320 : III. Largo
Concerto Grosso in C Minor, Op. 12 : II. Largo
Music for The Royal Fireworks, HWV 351 : Menuet 1
Concerto Grosso in A-Moll Op 38 : Larghetto
Ballettmusik für Mädchen - Der Nussknacker