ISRC DEF057703461
Verified recording
DEF057703461 is “4 Impromptus, Op. 90, D.899: No. 1 In C Minor: Allegro molto moderato” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x0d12d5bc1458b7055f57c32f84b16c2964467507acaaa01275b623379fe6a74a 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/DEF057703461.
Recording identifiers
- ISRC
- DEF057703461
- Title
- 4 Impromptus, Op. 90, D.899: No. 1 In C Minor: Allegro molto moderato
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x0d12d5bc1458b7055f57c32f84b16c2964467507acaaa01275b623379fe6a74a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:da7a8f47f8feab548d791faed439a3e17e8d988bdf898ee6c1807842abf24ce5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703461
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: 4 Impromptus, Op. 90, D.899: No. 1 In C Minor: Allegro molto moderato · Machine-readable JSON-LD