ISRC DEF058302074
Verified recording
DEF058302074 is “Piano Sonata No. 20 in A Major, D. 959: IV. Rondo. Allegretto” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x3d4bfd7d682a8272b3338645eac874d338d07ea8da772161f26c9876aaaa4c26 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058302074.
Recording identifiers
- ISRC
- DEF058302074
- Title
- Piano Sonata No. 20 in A Major, D. 959: IV. Rondo. Allegretto
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x3d4bfd7d682a8272b3338645eac874d338d07ea8da772161f26c9876aaaa4c26
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:284aeeba902da94949d97790825eb9ba81a11df4cd940aa82a66aa25c1f98cf0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058302074
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Piano Sonata No. 20 in A Major, D. 959: IV. Rondo. Allegretto · Machine-readable JSON-LD