ISRC DEF057703462
Verified recording
DEF057703462 is “4 Impromptus, Op. 90, D.899: No. 2 In E Flat: Allegro” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xb8a5446b7a9b28a34af0ab2e8c377a72337a2446df2adf1574ed0049bc754903 and independently timestamped
in Bitcoin block 960506 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703462.
Recording identifiers
- ISRC
- DEF057703462
- Title
- 4 Impromptus, Op. 90, D.899: No. 2 In E Flat: Allegro
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xb8a5446b7a9b28a34af0ab2e8c377a72337a2446df2adf1574ed0049bc754903
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:50:58+00:00
- Bitcoin block
- 960506
- Canonical record hash
sha256:c1efcdcf604abbce482a20864a94cc396b8d4bb22a0f8067258ff0c03ed819ab- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703462
- Bitcoin block existence check
- https://blockstream.info/api/block/960506
Full record
Track page: 4 Impromptus, Op. 90, D.899: No. 2 In E Flat: Allegro · Machine-readable JSON-LD