ISRC FRZ209908226
Verified recording
FRZ209908226 is “Chopin: 3 Nouvelles études, Op. Posth.: No. 2 in A-Flat Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x37aaf9d03bfe5972bcc634c2a788973e9c71101a9ef1f359ae4b278f1b1fd9ea and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908226.
Recording identifiers
- ISRC
- FRZ209908226
- Title
- Chopin: 3 Nouvelles études, Op. Posth.: No. 2 in A-Flat Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x37aaf9d03bfe5972bcc634c2a788973e9c71101a9ef1f359ae4b278f1b1fd9ea
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:a1f8d32d36715a3cb8ab3a8d32f944c0d2f4e78ed7548204a98e9ae3e62b1cde- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908226
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: Chopin: 3 Nouvelles études, Op. Posth.: No. 2 in A-Flat Major · Machine-readable JSON-LD