ISRC FRZ038302260
Verified recording
FRZ038302260 is “4 Impromptus, Op. 90, D.899: No. 1 in C Minor: Allegro molto moderato” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x3b7e17a713021131d4d4a76da337e1396960428b5d9522961fab82b19af2b424 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ038302260.
Recording identifiers
- ISRC
- FRZ038302260
- Title
- 4 Impromptus, Op. 90, D.899: No. 1 in C Minor: Allegro molto moderato
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x3b7e17a713021131d4d4a76da337e1396960428b5d9522961fab82b19af2b424
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:7e7272178182f2dbb5e8e2bdbce495b05334d996fca83eeabc9c6e0edbfa831a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ038302260
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: 4 Impromptus, Op. 90, D.899: No. 1 in C Minor: Allegro molto moderato · Machine-readable JSON-LD