ISRC DEF057409703
Verified recording
DEF057409703 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x18dfd801e0c469c8db984044d3c20ea0852c1a0b82fd847353b95d3a88fec478 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057409703.
Recording identifiers
- ISRC
- DEF057409703
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x18dfd801e0c469c8db984044d3c20ea0852c1a0b82fd847353b95d3a88fec478
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:a28a140bbf7d51675e0592702f8ec95b4a20ca6a82b51b83885ce4a9bcaed594- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057409703
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre - Pt. 3 · Machine-readable JSON-LD