ISRC NLUM71100166
Verified recording
NLUM71100166 is “4 Impromptus Op. 142, D.935: No. 3 in B flat: Theme (Andante) with Variations” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x769c540918d265039bd45c18b909aeed2cdf14314b98c046f466029a729d41c4 and independently timestamped
in Bitcoin block 959123 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71100166.
Recording identifiers
- ISRC
- NLUM71100166
- Title
- 4 Impromptus Op. 142, D.935: No. 3 in B flat: Theme (Andante) with Variations
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x769c540918d265039bd45c18b909aeed2cdf14314b98c046f466029a729d41c4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T11:35:32+00:00
- Bitcoin block
- 959123
- Canonical record hash
sha256:8a49fdeccb4200a9bd162d3500ea8cfaba2f3f353fb21360776d677930c03d94- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71100166
- Bitcoin block existence check
- https://blockstream.info/api/block/959123
Full record
Track page: 4 Impromptus Op. 142, D.935: No. 3 in B flat: Theme (Andante) with Variations · Machine-readable JSON-LD