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 0xc9547a4a9679ba7ea088a933f627b2cf4c5a29f7c1867deb5bfc959384aaa7bb. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfcac213-d278-407e-9844-29da72168099.json and https://artists.proofprofile.net/proofs/artist/cfcac213-d278-407e-9844-29da72168099.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Janáček, Foerster & Haas: Music for Wind Instruments
Wind Quintet in D Major, Op. 95: I. Allegro moderato
Wind Quintet in D Major, Op. 95: II. Andante sostenuto
Wind Quintet in D Major, Op. 95: III. Allegro scherzando
Wind Quintet in D Major, Op. 95: IV. Moderato e tranquillo - Allegro vivo - Allegro deciso
Wind Quintet, Op. 10: I. Preludio. Andante, ma vivace
Wind Quintet, Op. 10: II. Preghiera. Misterioso e triste
Wind Quintet, Op. 10: III. Balo eccentrico. Ritmo marcato
Wind Quintet, Op. 10: IV. Epilogo. Maestoso
Stravinsky, Janáček, Bartók: Village Stories
Les Noces: I. La Tresse / At the Bride’s House (The Tresses)
Les Noces: II. Chez la marié / At the Bridegroom’s House
Les Noces: III. Le Départ de la mariée / The Bride’s Departure
Les Noces: IV. Le Repas de noces / The Wedding Feast
Nursery Rhymes, JW V/17: I. Introduction
Nursery Rhymes, JW V/17: II. Turnip’s Getting Married
Nursery Rhymes, JW V/17: III. Spring Grass Looks So Fresh and Pleasant
Nursery Rhymes, JW V/17: IV. A Black Mole´s Crawling by a Hedge
Nursery Rhymes, JW V/17: V. Noel Trotted off to Hell
Nursery Rhymes, JW V/17: VI. Shabby Tattered Pair of Tights
Nursery Rhymes, JW V/17: VII. Frankie Diddle Played the Fiddle
Nursery Rhymes, JW V/17: IX. Hearken, Hearken to My Words!
Nursery Rhymes, JW V/17: X. Old Hag Did Her Spells and Magic
Nursery Rhymes, JW V/17: XI. Ho, Ho, Al’ Cows Go
Nursery Rhymes, JW V/17: XII. Mah Guidwillie Bonny Lass
Nursery Rhymes, JW V/17: XIII. Old Crone Crawls into the Brush
Nursery Rhymes, JW V/17: XIV. Pears Are Gathered by a White Goat
Nursery Rhymes, JW V/17: XV. No Good Kraut, up the Spout
Nursery Rhymes, JW V/17: XVI. Goat is Lying in the Hay
Nursery Rhymes, JW V/17: XVII. Rodney Podney Drums So Hard
Nursery Rhymes, JW V/17: XVIII. Frankie Lad
Nursery Rhymes, JW V/17: XIX. A Black Bear’s Bobbing on a Big Bough
Three Village Scenes, BB 87b: I. Wedding
Three Village Scenes, BB 87b: II. Lullaby
Three Village Scenes, BB 87b: III. Lad’s Dance
Elements (Nielsen - Hindemith - Barber - Tomasi - Pärt)
Summer Music for Woodwind Quintet, Op. 31
Kleine Kammermusik, Op. 24: No. 1, Lustig. Mässig schnelle Viertel
Kleine Kammermusik, Op. 24: No. 2, Walzer. Durchweg sehr leise
Kleine Kammermusik, Op. 24: No. 3, Ruhig und einfach
Kleine Kammermusik, Op. 24: No. 4, Schnelle Viertel
Kleine Kammermusik, Op. 24: No. 5, Sehr lebhaft
Wind Quintet, Op. 43: No. 1, Allegro ben moderato
Wind Quintet, Op. 43: No. 3, Praeludium. Adagio
Wind Quintet, Op. 43: No. 4, Theme and Variations. Un poco andantino
Cinq danses profanes et sacrées: No. 1, Danse agreste
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 0x070beac956f20ec8ff1e025c8f82b7453916b2a0742bcc63fe0497cb349bf8b7. 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/CZA162101585.
Cinq danses profanes et sacrées: No. 2, Danse profane
Cinq danses profanes et sacrées: No. 3, Danse sacrée
Cinq danses profanes et sacrées: No. 4, Danse nuptiale
Cinq danses profanes et sacrées: No. 5, Danse guerriere
Dětské písně pro flétnu a klavír: Zlaté posvícení
Dětské písně pro flétnu a klavír: Přivolávač deště
Dětské písně pro flétnu a klavír: Minuty
Dětské písně pro flétnu a klavír: Rej skřítků
Dětské písně pro flétnu a klavír: Na moři
Dětské písně pro flétnu a klavír: Na starém hradě
Dětské písně pro flétnu a klavír: Na houpačce
Dětské písně pro flétnu a klavír: Na slepou bábu
Dětské písně pro flétnu a klavír: Vteřiny
Dětské písně pro flétnu a klavír: Píseň nejen pro C.C.
Dětské písně pro flétnu a klavír: Kočka a myš
Dětské písně pro flétnu a klavír: Podzim
Putování zemí Ra: Part I - Půlnoční plavba
Putování zemí Ra: Part II - Vůně javorového koláče
Putování zemí Ra: Part III - Defilé gekonů
Wind Quintet in E-Flat Major, Op. 88 No. 2: No. 1, Lento - Allegro moderato
Wind Quintet in E-Flat Major, Op. 88 No. 2: No. 2, Menuetto. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcec1e75a5e6532eeed7dbdd07afa1a9c15b4d18e7925dcd9564da639290d28d. 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/CZA161900848.
Wind Quintet in E-Flat Major, Op. 88 No. 2: No. 3, Poco andante. Grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232a87345fa6f9a227bd4bdb62c281378baf7112598c7d7ce0a7faeea8f005b6. 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/CZA161900849.
Wind Quintet in E-Flat Major, Op. 88 No. 2: No. 4, Finale. Allegretto
Wind Quintet in E Minor, Op. 88 No. 1: No. 1, Introduction. Andante - Allegro, ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2b310139bbe47d48b12ae6d9b28b2e073ea3d5377697466cf3350d0ff6a4b. 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/CZA161900852.
Wind Quintet in E Minor, Op. 88 No. 1: No. 2, Andante poco allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6d5835762620be2ddb16e42cd5cb2e5efeee55ea97b04c6a0a9f84aa4b9071. 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/CZA161900853.
Wind Quintet in E Minor, Op. 88 No. 1: No. 3, Menuetto. Allegro vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7780927810626a3f63400b08e1f9415ef1355eec0cf5981d5c5528cb24514903. 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/CZA161900854.
Wind Quintet in E Minor, Op. 88 No. 1: No. 4, Finale. Allegro
Wind Quintet in D Major, Op. 91 No. 3: No. 1, Lento - Allegro assai
Wind Quintet in D Major, Op. 91 No. 3: No. 2, Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b9f5a93251b0fca6b70705bae5b9792a827d624ae5fb6bba4ab6f71914d387. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CZA161900858.
Wind Quintet in D Major, Op. 91 No. 3: No. 3, Minuetto. Allegro vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc42235684f154cf3bb14b8ca0f74d662c5226ea480106d394d7e4197551515. 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/CZA161900859.
Wind Quintet in D Major, Op. 91 No. 3: No. 4, Finale. Allegretto
Shaker Suite "Canterbury": I. Scenes of Glory
Shaker Suite "Canterbury": II. Purest Blessing
Shaker Suite "Canterbury": III. Ministration
Shaker Suite "Canterbury": IV. The Good Samaritan