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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f8ac7e6cd9eea44ca3b99c4f1d47ffb19673f764cc90ed45086008785d19b3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b68e886-a9f2-49a6-a25b-442d66d44ab9.json and https://artists.proofprofile.net/proofs/artist/6b68e886-a9f2-49a6-a25b-442d66d44ab9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canon in D Major P. 37: Pachelbel's Canon (with Rain Sounds)
Piano Sonata No. 11 in A Major K.331: III. Rondo alla turca (with Rain Sounds)
Greensleeves to a Ground (with Rain Sounds)
Wiegenlied No. 4 Lullaby in E Flat Major Op. 49 (with Rain Sounds)
Bagatelle No. 25 in A Minor WoO 59 / Bia 515: Fur Elise (with Rain Sounds)
Prelude and Fugue No. 1 in C Major BWV 846: Prelude (with Rain Sounds)
Invention No. 4 in D Minor BWV 775; Invention No. 6 in E Major BWV 777 (Medley) (with Rain Sounds)
Invention No. 14 in B-Flat Major BWV 785 (with Rain Sounds)
Prelude and Fugue in D Major BWV 850: Prelude (with Rain Sounds)
Les Barricades Mystérieuses (with Rain Sounds)
Suite No. 1 in G Major BWV 1007: Allemande (with Rain Sounds)
Suite No. 1 in G Major BWV 1007: Allemande (Strings Version with Rain Sounds)
Prelude and Fugue No. 1 in C Major BWV 846: Prelude (Strings Version with Rain Sounds)
Prelude and Fugue in D Major BWV 850: Prelude (Strings Version with Rain Sounds)
Greensleeves to a Ground (Strings Version with Rain Sounds)
Canon in D Major P. 37: Pachelbel's Canon (Strings Version with Rain Sounds)
Wiegenlied No. 4 Lullaby in E Flat Major Op. 49 (Strings Version with Rain Sounds)
The Goldberg Variations, BWV 988: Variation 1
Orchestral Suite No. 3 in D Major, BWV 1068: Air on the G String
Piano Sonata No. 14 in C Sharp Minor, Op. 27, No. 2: Moonlight Sonata
Bagatelle No. 25 in A Minor, WoO 59 / Bia 515: Fur Elise
Suite Bergamasque, L. 75: III. Clair de Lune
Suite in B Flat Major, HWV 434: IV. Menuet
Liebestraum No. 3 in A Flat Major, S. 541: Love Dream
Piano Sonata No. 11 in A Major, K. 331: III. Rondo alla Turca
Piano Concerto No. 21 in C Major, K. 467: II. Andante
Requiem in D Minor, K. 626: Lacrimosa - Solo Piano Version
Canon in D Major, P. 37: Pachelbel’s Canon
The Carnival of the Animals, R. 125: XIII. The Swan
Swan Lake, Op. 20, Act II: No. 10, Scene. Swan Theme
Swan Lake, Op. 20, Act IV: No. 27. Dance of the Little Swans