ISRC DEF059605583
Verified recording
DEF059605583 is “4 Impromptus, Op. 90, D. 899: No. 3 in G-Flat Major” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x34632ca7107233f85679d5d172fd6c562f274a497837c1f805db1a84bcd3b497 and independently timestamped
in Bitcoin block 960163 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605583.
Recording identifiers
- ISRC
- DEF059605583
- Title
- 4 Impromptus, Op. 90, D. 899: No. 3 in G-Flat Major
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x34632ca7107233f85679d5d172fd6c562f274a497837c1f805db1a84bcd3b497
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T23:20:38+00:00
- Bitcoin block
- 960163
- Canonical record hash
sha256:6e9923d8ee5e31ca72d3b6cca180494b43792ba939a5e2c81c16c48fb3d8c58b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605583
- Bitcoin block existence check
- https://blockstream.info/api/block/960163
Full record
Track page: 4 Impromptus, Op. 90, D. 899: No. 3 in G-Flat Major · Machine-readable JSON-LD