ISRC DEF059103044
Verified recording
DEF059103044 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xaf513e71598667d08493510cec37a0136f6e23e10cd0f647d1908ab01f2c4dce and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103044.
Recording identifiers
- ISRC
- DEF059103044
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xaf513e71598667d08493510cec37a0136f6e23e10cd0f647d1908ab01f2c4dce
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:cf055bd7d162c11be066ce970389e73c1bb159eab8d47a1fa874bab844017b0a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103044
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto) · Machine-readable JSON-LD