ISRC DEF059703232
Verified recording
DEF059703232 is “4 Impromptus, Op. 142, D. 935: No. 2 in A-Flat Major: Allegretto” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xc0ae2f14dae23169b2b9fceb0e11b39424caac8cdf84779b88d35439bb30bf86 and independently timestamped
in Bitcoin block 960497 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703232.
Recording identifiers
- ISRC
- DEF059703232
- Title
- 4 Impromptus, Op. 142, D. 935: No. 2 in A-Flat Major: Allegretto
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xc0ae2f14dae23169b2b9fceb0e11b39424caac8cdf84779b88d35439bb30bf86
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T02:22:04+00:00
- Bitcoin block
- 960497
- Canonical record hash
sha256:d0ba28301b19230a425a64c998c4190588547ebbef1999a5c8d33a63a7aeea98- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703232
- Bitcoin block existence check
- https://blockstream.info/api/block/960497
Full record
Track page: 4 Impromptus, Op. 142, D. 935: No. 2 in A-Flat Major: Allegretto · Machine-readable JSON-LD