ISRC DEF058500340
Verified recording
DEF058500340 is “Mazurka No. 13 in A Minor, Op. 17 No. 4” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3770bd32e749386dc7073d1982b6941f5c956416f2ff5f0d289840d378a55fbf and independently timestamped
in Bitcoin block 953536 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058500340.
Recording identifiers
- ISRC
- DEF058500340
- Title
- Mazurka No. 13 in A Minor, Op. 17 No. 4
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3770bd32e749386dc7073d1982b6941f5c956416f2ff5f0d289840d378a55fbf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T17:25:41+00:00
- Bitcoin block
- 953536
- Canonical record hash
sha256:a81023cd7e282ac95b3b096db6d114df6693482793ec026dacd843efb88c89b8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058500340
- Bitcoin block existence check
- https://blockstream.info/api/block/953536
Full record
Track page: Mazurka No. 13 in A Minor, Op. 17 No. 4 · Machine-readable JSON-LD