ISRC ITX921002628
Verified recording
ITX921002628 is “4 Impromptus, Op. 142, D. 935: No. 4 in F Minor” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xcdafb7dfae22a90d8eed721dcc33a77a910f13a16ffe4beed1dbff1004173453 and independently timestamped
in Bitcoin block 960435 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002628.
Recording identifiers
- ISRC
- ITX921002628
- Title
- 4 Impromptus, Op. 142, D. 935: No. 4 in F Minor
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xcdafb7dfae22a90d8eed721dcc33a77a910f13a16ffe4beed1dbff1004173453
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:33:26+00:00
- Bitcoin block
- 960435
- Canonical record hash
sha256:71c397578537be08332519d5ca1dabbbf337d110b105ab3a5024322339ea1e3a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002628
- Bitcoin block existence check
- https://blockstream.info/api/block/960435
Full record
Track page: 4 Impromptus, Op. 142, D. 935: No. 4 in F Minor · Machine-readable JSON-LD