ISRC DEF059605582
Verified recording
DEF059605582 is “4 Impromptus, Op. 90, D. 899: No. 2 in E-Flat Major: Allegro” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x988b75f68ee679f568c93b4a5ed0ab7a31f3f8bbd9297b79409f442f29b677f8 and independently timestamped
in Bitcoin block 960370 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605582.
Recording identifiers
- ISRC
- DEF059605582
- Title
- 4 Impromptus, Op. 90, D. 899: No. 2 in E-Flat Major: Allegro
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x988b75f68ee679f568c93b4a5ed0ab7a31f3f8bbd9297b79409f442f29b677f8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:38:45+00:00
- Bitcoin block
- 960370
- Canonical record hash
sha256:ce94b020702bb08ee3d574e528858dadc06f59e72dcba034b75b35be114a4076- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605582
- Bitcoin block existence check
- https://blockstream.info/api/block/960370
Full record
Track page: 4 Impromptus, Op. 90, D. 899: No. 2 in E-Flat Major: Allegro · Machine-readable JSON-LD