ISRC DEF058702211
Verified recording
DEF058702211 is “Piano Sonata No. 21 in B Flat Major, D. 960: I. Molto moderato” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x4f11a1074daf7ec2ee0333d2cb1947e6348b95c3c91e4c9d9f314c981202a139 and independently timestamped
in Bitcoin block 960317 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058702211.
Recording identifiers
- ISRC
- DEF058702211
- Title
- Piano Sonata No. 21 in B Flat Major, D. 960: I. Molto moderato
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x4f11a1074daf7ec2ee0333d2cb1947e6348b95c3c91e4c9d9f314c981202a139
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T21:35:24+00:00
- Bitcoin block
- 960317
- Canonical record hash
sha256:6aa02470f92a35ee724217d25dbafcc49eda1c5d936f9bba92ce8a0f74055c79- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058702211
- Bitcoin block existence check
- https://blockstream.info/api/block/960317
Full record
Track page: Piano Sonata No. 21 in B Flat Major, D. 960: I. Molto moderato · Machine-readable JSON-LD