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 0x06e55ff9c7e60fce9641972e1df711a767155b01bea611c24941aff0e72f7218. 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/b3c8ccae-6593-4707-9dc8-062754fbd915.json and https://artists.proofprofile.net/proofs/artist/b3c8ccae-6593-4707-9dc8-062754fbd915.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goldberg Variations, BWV 988 (FEURICH 218 Grand Piano)
J.S.Bach, SONATA FOR FLUTE AND HARPSCHORD Bwv 1020
J.S.Bach. AIR ON THE G STRING. BWV 1068. Arr. for Flute and Strings
Bach, J.S. Liebster Jesu, wir sind hier. BWV 754 (Arr. for Trio String)
Jesu, Joy of Man's Desiring, BWV 147 (J.S. Bach)
J.S. Bach: Goldberg Variations (Synthesizer)
J.S. Bach: Goldberg Variations, 14 Canons BWV 1087
Cello Suites No. 1 in G major, BWV 1007: Prelude
Violin Partita no 3 in E Major, BWV 1006 (Harpsichord)
J.S. Bach: Little Fugue in G minor BWV 578 (Harpsichord, transposed to Bb Minor)
Johann Sebastian Bach: Menuett in G-Dur (BWV Anhang 116)
J.S. Bach: Trio Sonata no 1 in Eb major, BWV 525
J.S. Bach: Trio Sonata No. 2 in C Minor, BWV 526
J.S. Bach: Trio Sonata No. 3 in D Minor, BWV 527
J.S. Bach: Trio Sonata No. 4 in E Minor, BWV 528
J.S. Bach: Trio Sonata No. 5 in C Major, BWV 529
J.S. Bach: Trio Sonata No. 6 in G Major, BWV 530
Flute Partita in A Minor, BWV 1013 (Arr. for Bassoon in C minor): I. Allemande
J.S. Bach: Lute Suite in C minor, BWV 997
J.S. Bach, THE 15 SYMPHONIES ARR. FOR STRING TRIO (BWV 787-801)
J.S. Bach : Partita No. 1 in B-flat Major, BWV 825
J.S. Bach : Partita No. 2 in C Minor, BWV 826
Ich ruf' zu Dir, Herr Jesu Christ (J.S. Bach)
Invention No.14 B-flat Major, BMV 785 インヴェンション 第14番
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 0xdc890d88a70353adff31b1720f3cf1b0b254b595c2370f0f42ab3930c70e9d0c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNWZ2540631.
Allegro from Violin Sonata No. 2 in A minor, BWV 1003
J.S. Bach : Partita No. 3 in A minor, BWV 827
J.S. Bach : Partita No. 4 in D major, BWV 828
Invention No.6 E Major, BMV777 インヴェンション 第6番
J.S. Bach : Partita No. 5 in G Major, BWV 829