ISRC DEF057409705
Verified recording
DEF057409705 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 5” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x2e8d05f45d88e66170d086a862c354550be7a9408cae024bd7339a809dd5ebfc and independently timestamped
in Bitcoin block 960191 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057409705.
Recording identifiers
- ISRC
- DEF057409705
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 5
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x2e8d05f45d88e66170d086a862c354550be7a9408cae024bd7339a809dd5ebfc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:51:26+00:00
- Bitcoin block
- 960191
- Canonical record hash
sha256:dae71a6b42a859398d05457d7b72ed4b6264b7d731d4a6632c1ad38893c99010- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057409705
- Bitcoin block existence check
- https://blockstream.info/api/block/960191
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 5 · Machine-readable JSON-LD