ISRC NLUM71100171
Verified recording
NLUM71100171 is “4 Impromptus, Op. 90, D.899: No. 4 in A flat: Allegretto” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x4043611eed2870cbcca7d36599d012ef5cd659147921048c713fd39f9b776f0a and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71100171.
Recording identifiers
- ISRC
- NLUM71100171
- Title
- 4 Impromptus, Op. 90, D.899: No. 4 in A flat: Allegretto
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x4043611eed2870cbcca7d36599d012ef5cd659147921048c713fd39f9b776f0a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:d545fdc8441de9696e9713a6e467083648135d72fef0a10f7c3c5bc06d45dda2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71100171
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: 4 Impromptus, Op. 90, D.899: No. 4 in A flat: Allegretto · Machine-readable JSON-LD