ISRC DEF058702212
Verified recording
DEF058702212 is “Piano Sonata No. 21 in B Flat Major, D. 960: II. Andante sostenuto” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xfd1a3498c919e19adf8cde35a333f769fe9985ee08c63ddb8698ce7548075c5c and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058702212.
Recording identifiers
- ISRC
- DEF058702212
- Title
- Piano Sonata No. 21 in B Flat Major, D. 960: II. Andante sostenuto
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xfd1a3498c919e19adf8cde35a333f769fe9985ee08c63ddb8698ce7548075c5c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f6beb65869c9a886fc8c09ea58c5ec65f037f3fb83fd231b461e659686ca2250- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058702212
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 21 in B Flat Major, D. 960: II. Andante sostenuto · Machine-readable JSON-LD