ISRC FRZ077001040
Verified recording
FRZ077001040 is “2 Polonaises, Op. 40: No. 1 in A Major "Military"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xfec7c40da97a8e17666f19b21a12d3237779fe6a7d291134e9646d36b0dd4b8a and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077001040.
Recording identifiers
- ISRC
- FRZ077001040
- Title
- 2 Polonaises, Op. 40: No. 1 in A Major "Military"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xfec7c40da97a8e17666f19b21a12d3237779fe6a7d291134e9646d36b0dd4b8a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:18200ad275bf0c371881cc0be24b93f6c0c9722cf1f8003ed2c0dba0f2d39fa5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077001040
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 2 Polonaises, Op. 40: No. 1 in A Major "Military" · Machine-readable JSON-LD