ISRC ITX921002625
Verified recording
ITX921002625 is “4 Impromptus, Op. 142, D. 935: No. 1 in F Minor” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x7fd8df6d72cbf2a58ddf1cf4995e365804ef2026fa511cfb029bcdddaf60d2cd and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002625.
Recording identifiers
- ISRC
- ITX921002625
- Title
- 4 Impromptus, Op. 142, D. 935: No. 1 in F Minor
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x7fd8df6d72cbf2a58ddf1cf4995e365804ef2026fa511cfb029bcdddaf60d2cd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:af69737bff1284a9a2b1fab481fecd6600e0ff008b7cb4501f106cf1d2917b54- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002625
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: 4 Impromptus, Op. 142, D. 935: No. 1 in F Minor · Machine-readable JSON-LD