ISRC DEF059004374
Verified recording
DEF059004374 is “Mazurka No. 17 in B flat minor Op. 24 No. 4: Moderato” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x4c0bb8441c86f005f9ce7003de846327b87f78a98d5badd7fe476228692ce1f1 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059004374.
Recording identifiers
- ISRC
- DEF059004374
- Title
- Mazurka No. 17 in B flat minor Op. 24 No. 4: Moderato
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x4c0bb8441c86f005f9ce7003de846327b87f78a98d5badd7fe476228692ce1f1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:0d7094c29155e03f25950a4789cd20491cb2e18585188fd2b091b93aa9eebb5e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059004374
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Mazurka No. 17 in B flat minor Op. 24 No. 4: Moderato · Machine-readable JSON-LD