ISRC DEF059703231
Verified recording
DEF059703231 is “4 Impromptus, Op. 142, D. 935: No. 1 in F Minor: Allegro moderato” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x7b82aab5a44c42fc3e84bd7365537c2f350336c2025c611026f3bd304fab48b0 and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703231.
Recording identifiers
- ISRC
- DEF059703231
- Title
- 4 Impromptus, Op. 142, D. 935: No. 1 in F Minor: Allegro moderato
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x7b82aab5a44c42fc3e84bd7365537c2f350336c2025c611026f3bd304fab48b0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:41fc1be8dcb884e81c908b2ab6149d71f87a43d38f5a902bf7ecf39abdee03ea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703231
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: 4 Impromptus, Op. 142, D. 935: No. 1 in F Minor: Allegro moderato · Machine-readable JSON-LD