ISRC FRZ119603520
Verified recording
FRZ119603520 is “Chopin: 3 Polonaises, Op. Posth. 71: No. 3 in F Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xbe77d4712b3c2acf3b0c74f322b4bd424f10288707a8c6d40afb8d2df710621c and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119603520.
Recording identifiers
- ISRC
- FRZ119603520
- Title
- Chopin: 3 Polonaises, Op. Posth. 71: No. 3 in F Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xbe77d4712b3c2acf3b0c74f322b4bd424f10288707a8c6d40afb8d2df710621c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:5b71fb17fb3e9d01f13be6832d548010b182f35333be819b106750eb90ef3037- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119603520
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Chopin: 3 Polonaises, Op. Posth. 71: No. 3 in F Minor · Machine-readable JSON-LD