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 0xc5e6d6bc18fca04fc1ef78bf49aee5017a43ca2ed660ae2565c15d06b99359a1. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/262dd8b1-5489-4891-bc15-bdaf54a25923.json and https://artists.proofprofile.net/proofs/artist/262dd8b1-5489-4891-bc15-bdaf54a25923.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Preludio y estudio No. 3 for Piano: Estudio
Pièces de clavecin, Book 1, Suite No. 1 in D Minor (Excerpts): No. 1, Prelude
Pièces de clavecin, Book 1, Suite No. 1 in D Minor (Excerpts): No. 4, Courante II
Pièces de clavecin, Book 1, Suite No. 1 in D Minor (Excerpts): No. 5, Sarabande
Pièces de clavecin, Book 1, Suite No. 1 in D Minor (Excerpts): No. 8, Chaconne L'inconstante
Pièces de clavecin, Book 1, Suite No. 1 in D Minor (Excerpts): No. 6, Gigue
Variationen über ein Thema von Robert Schumann, Op. 20
Partita for Solo Piano: I. Perpetuum Mobile
Partita for Solo Piano: III. Allegramente
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 → block OTSBitcoinBlock must exist at that height 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 0x6b84c95e33af98155ded3251518eabac46c95ea51273bf08aa045bae206d2668. 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/GBSLT2213211.
Keyboard Sonata in B Minor, Op. 2 No. 5: I. Allegro moderato
Keyboard Sonata in B Minor, Op. 2 No. 5: II. Adagio non molto
Keyboard Sonata in B Minor, Op. 2 No. 5: III. Allegro
4 Lieder for Piano, Op. 8 (Excerpts): No. 1, Allegro moderato, H-U 423
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c63b3ef6214bcd8b9c31bddd7c4fb21b80c1c20c85902ffbe91b52e2f8853e5. 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/GBSLT2113104.
4 Lieder for Piano, Op. 8 (Excerpts): No. 3, Larghetto, H-U 461
Au sein de la nature: No. 3, Le murmure des blés
8 Descriptive Pieces, Op. 20: No. 2, Birds at Dawn
Dubnová preludia, Op. 13 (Excerpts): No. 1, Allegro ma non troppo
Dubnová preludia, Op. 13 (Excerpts): No. 3, Andante semplice
Piano Sonata "To the Victims of Auschwitz": I. Allegro appassionato
Piano Sonata "To the Victims of Auschwitz": II. Epitaph
Piano Sonata "To the Victims of Auschwitz": III. Allegro
Eighty Trips Around the Sun: Music by and for Terry Riley
Patterns of Plants, the Twenty-First Collection: Pattern A
Patterns of Plants, Piano Selection II: Pattern A ("Servus Paphiopedilum")
Patterns of Plants, the Twenty-First Collection: Pattern B
Patterns of Plants, Piano Selection II: Pattern D ("Euphlsia puella parva est")
Patterns of Plants, the Twenty-First Collection: Pattern D
Patterns of Plants, the Thirteenth Collection: Pattern B
Patterns of Plants, the Fifth Collection: Pattern D
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da1ee4ad48f10b5170fa5975565e76fe0c84b2fd83d098e87062a3aa5d986ae. 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/QMDPN1400204.
Patterns of Plants, the Thirteenth Collection: Pattern D
Patterns of Plants, the Twelfth Collection: Pattern A
Patterns of Plants, the Fifteenth Collection: Pattern B
Patterns of Plants, the Twelfth Collection: Pattern B
Patterns of Plants, the Fifteenth Collection: Pattern C
Patterns of Plants, the Twelfth Collection: Pattern C
Patterns of Plants, the Eleventh Collection: Pattern A
Patterns of Plants, the Twelfth Collection: Pattern D
Patterns of Plants, the Eleventh Collection: Pattern D
Patterns of Plants, the Seventh Collection: Pattern A
Patterns of Plants, the Sixteenth Collection: Pattern A
Patterns of Plants, the Seventh Collection: Pattern B
Patterns of Plants, the Sixteenth Collection: Pattern B
Patterns of Plants, the Nineteenth Collection "The Olive Branch Speaks": Pattern A
Patterns of Plants, the Sixteenth Collection: Pattern C
Patterns of Plants, the Nineteenth Collection "The Olive Branch Speaks": Pattern B
Patterns of Plants, the Sixteenth Collection: Pattern D
Patterns of Plants, the Nineteenth Collection "The Olive Branch Speaks": Pattern C
Patterns of Plants, Piano Selection I: Pattern A
Patterns of Plants, the Nineteenth Collection "The Olive Branch Speaks": Pattern D
Patterns of Plants, Piano Selection I: Pattern B
Patterns of Plants, the Twentieth Collection "Begonia In My Life": Pattern B
Patterns of Plants, Piano Selection I: Pattern C
Patterns of Plants, the Twentieth Collection "Begonia In My Life": Pattern D
Patterns of Plants, Piano Selection I: Pattern D
Quartet for Strings, “Italian”: Allegretto
Quartet for Strings, “Italian”: Presto possible
Serenade for String Quartet: Largo: Largo III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a81081e8dfcf06836251ccb816b65bbcf1c5395bd77bd84fbbd5ad010ece989. 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/US87H0813811.
Byron: Awakening at the Inn of the Birds
Žibuoklé Martinaitytė: Heights and Depths of Love: Pt. I: Togetherness
Heights and Depths of Love: Pt. I: Togetherness
Au sein de la nature: III. Le murmure des blés
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dcd7b1e598fadd4b24d7b9a258059661dd0b05c29fd1ab86fcd0ed84047d22. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBSLT2213107.
Harrison: Concerto for Piano with Javanese Gamelan
Concerto for Piano with Javanese Gamelan: I. Bull's Belle
Concerto for Piano with Javanese Gamelan: II. [Untitled]
Concerto for Piano with Javanese Gamelan: III. Belle's Bull
After the Wars: I. Spring View "The Nation Is Ruined, but the Mountains and Rivers Remain"
After the Wars: II. Summer Grass - All That Remains - Of Young Warriors' Dreams
After the Wars: III. Occasional Poem on an Autumn Day "When I Am at Peace I Let Everything Go"
After the Wars: IV. A Snowy Morning - And Smoke From the Kitchen Roof— - It Is Good.
Night and Dawn (Nacht en Dageraad): Night
Black Water Suite: Are there Clouds in India?
Night and Dawn (Nacht en Dageraad): Dawn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a99b7513140af2ee9c0a800a8695f44513b264495300b14239569ab0230785e. 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/US29K1023349.
University of Wisconsin River Falls Concert Choir
University of Wisconsin Percussion Quartet
It Should have Happened a Long Time Ago (arr. J. Harrison)
Los Pajaros Blancos de la Noche Profunda (The White Birds of the Deep Night)
Cronicas del discubrimiento: Tercera Cronica: I. Canciion
Come Out, Sit Awhile, Break the Bottle, And You is Lost
Scherzo alla Russe (Version for Chamber Ensemble)
Vocalise in D Minor for Violin, Piano & Chamber Ensemble
Lux aeterna (Arr. G. Tingley for Voice & Piano)
Habanera in G Minor (Version for Cello & Piano)
Povera canzona (Arr. G. Tingley for Voice, Piano & String Ensemble)
Veneziana (Arr. G. Tingley for Voice, Piano & String Ensemble)
Time Brutal and Tender (Version for Violin & Piano)
Sanctus "Holy, Holy, Holy" (Arr. G. Tingley for Voice & Piano)
California Congregation of First United Methodist Church of Point Richmond
The Great Conversation (Version for Cello & Piano)
Elegy in A Minor for Violin, Piano & Chamber Ensemble
Petrolio, quattro quadri da Pasolin: I. Moderato cantabile
Petrolio, quattro quadri da Pasolin: II. Aereo
Petrolio, quattro quadri da Pasolin: III. Cantabile - Ritmico - Come prima - Lentissimo
Petrolio, quattro quadri da Pasolin: IV. Liberamente
4 Canzoni su testi dell'autore: No. 1, Il pedone dell'aria
4 Canzoni su testi dell'autore: No. 2, Polinesiano
4 Canzoni su testi dell'autore: No. 3, Carpe
4 Canzoni su testi dell'autore: No. 4, Analfabeta
Quartetto No. 2, I. Canzonetta. Vivace andantino
Quartetto No. 2, III. Allegro - Cadenza - Allegro con agio
Preludio e siciliana dalla: II. Siciliana
In Retrospect - 5 Pieces for Piano: I. Prelude
In Retrospect - 5 Pieces for Piano: II. Dance
In Retrospect - 5 Pieces for Piano: III. Song
In Retrospect - 5 Pieces for Piano: IV. Pastorale
In Retrospect - 5 Pieces for Piano: V. Toccata
Chamber Setting No. 2: 2. Quarter Equals 72
Chamber Setting No. 2: 3. Quarter Equals 96
Solfeggietto No. 3: 2. Quarter Equals Ca. 108
Quartet for Strings, "Italian": I. Allegro
Quartet for Strings, "Italian": II. Allegretto
Quartet for Strings, "Italian": III. Presto possibile
Quartet for Strings, "Italian": IV. Lento