ISRC JPPC09611230
Verified recording
JPPC09611230 is “Sonata for Violoncello and Contrabass in F Mejor: Ⅱ. Polonaise Lento” by Franz Benda,
registered on the CopyrightChains blockchain with CopyrightID
0x265dd33fb6651fd4f57ed97076237d8c94b8684ad92624d8354cc8b58f078ef3 and independently timestamped
in Bitcoin block 957124 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC09611230.
Recording identifiers
- ISRC
- JPPC09611230
- Title
- Sonata for Violoncello and Contrabass in F Mejor: Ⅱ. Polonaise Lento
- Artist
- Franz Benda
- CopyrightID (CopyrightChains transaction hash)
0x265dd33fb6651fd4f57ed97076237d8c94b8684ad92624d8354cc8b58f078ef3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:53:27+00:00
- Bitcoin block
- 957124
- Canonical record hash
sha256:dbe3dc71ecca8bda1ea4d5d03d3973b2ebd378a49e1743d4f61b0df5472f5080- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC09611230
- Bitcoin block existence check
- https://blockstream.info/api/block/957124
Full record
Track page: Sonata for Violoncello and Contrabass in F Mejor: Ⅱ. Polonaise Lento · Machine-readable JSON-LD