ISRC FRZ117306231
Verified recording
FRZ117306231 is “Polonaises, Op. 40, No. 1 in A Major 'Militaire'” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x24b8b3be5005af2862e381d8eac5fc9838689847efcd358f31a8109a30f614e6 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ117306231.
Recording identifiers
- ISRC
- FRZ117306231
- Title
- Polonaises, Op. 40, No. 1 in A Major 'Militaire'
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x24b8b3be5005af2862e381d8eac5fc9838689847efcd358f31a8109a30f614e6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:5ae3a88e80dd3f39604e49ee8841db7a2ac1e3adee5ad0cc3b9ece0ac95a6ef7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ117306231
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Polonaises, Op. 40, No. 1 in A Major 'Militaire' · Machine-readable JSON-LD