ISRC DEF057700390
Verified recording
DEF057700390 is “4 Impromptus Op. 142, D.935: No. 1 In F Minor: Allegro moderato” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x07ea64a0e366f41ada96b26f0b7d1d55579b00df34879c0612c957068b083ecf 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/DEF057700390.
Recording identifiers
- ISRC
- DEF057700390
- Title
- 4 Impromptus Op. 142, D.935: No. 1 In F Minor: Allegro moderato
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x07ea64a0e366f41ada96b26f0b7d1d55579b00df34879c0612c957068b083ecf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:a2ab5406a3d4216b26632d7dd6aafd0335e755f44c0ae1c211ea3a38a8da6288- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057700390
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: 4 Impromptus Op. 142, D.935: No. 1 In F Minor: Allegro moderato · Machine-readable JSON-LD