ISRC DEF057703463
Verified recording
DEF057703463 is “4 Impromptus, D. 899 (Op. 90): No. 3 in G-Flat Major. Andante” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xf7a356b4543d06bc081a6001e2e65467aa9f6074b6981a14a0e783bcb70ba428 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703463.
Recording identifiers
- ISRC
- DEF057703463
- Title
- 4 Impromptus, D. 899 (Op. 90): No. 3 in G-Flat Major. Andante
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xf7a356b4543d06bc081a6001e2e65467aa9f6074b6981a14a0e783bcb70ba428
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:883c7186b35fb1471077285d2d3bab01217828264f7c24e4eda7ef819a95bf36- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703463
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: 4 Impromptus, D. 899 (Op. 90): No. 3 in G-Flat Major. Andante · Machine-readable JSON-LD