ISRC DEF059703233
Verified recording
DEF059703233 is “4 Impromptus Op. 142, D. 935: No. 3 in B-Flat Major: Theme (Andante) With Variations” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xad3212d46b5f3c1ca6c28810e1ab5a1558a0d29bb220baf3041f52e352eef9d5 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703233.
Recording identifiers
- ISRC
- DEF059703233
- Title
- 4 Impromptus Op. 142, D. 935: No. 3 in B-Flat Major: Theme (Andante) With Variations
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xad3212d46b5f3c1ca6c28810e1ab5a1558a0d29bb220baf3041f52e352eef9d5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:4819db8e98d42351616ee8e4e5bb2f8ec090072534ab63c83e39bcf30184a590- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703233
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: 4 Impromptus Op. 142, D. 935: No. 3 in B-Flat Major: Theme (Andante) With Variations · Machine-readable JSON-LD