ISRC DEF059103213
Verified recording
DEF059103213 is “4 Impromptus, Op. 90, D.899: No. 3 in G-Flat Major: Andante” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xa61dd3a04ef32aaa88871f6adc8821896864e49f94c0d0392996966ad6eaed20 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103213.
Recording identifiers
- ISRC
- DEF059103213
- Title
- 4 Impromptus, Op. 90, D.899: No. 3 in G-Flat Major: Andante
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xa61dd3a04ef32aaa88871f6adc8821896864e49f94c0d0392996966ad6eaed20
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f00c4bb750e4171a7ba9f0b123897b2d945b92504e60f33ecabd76184657f6e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103213
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 4 Impromptus, Op. 90, D.899: No. 3 in G-Flat Major: Andante · Machine-readable JSON-LD