ISRC NLA507401104
Verified recording
NLA507401104 is “Ballade No. 4 in F minor, Op. 52” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x51dee715d61ff2bc77636f8bdb6496d7300298364a1fe6039633a607d32dfb01 and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401104.
Recording identifiers
- ISRC
- NLA507401104
- Title
- Ballade No. 4 in F minor, Op. 52
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x51dee715d61ff2bc77636f8bdb6496d7300298364a1fe6039633a607d32dfb01
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:82a53f48a0ebaf490b52c2c43212a14ca7ffc89f66bde8886f813de6e9a76b35- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401104
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: Ballade No. 4 in F minor, Op. 52 · Machine-readable JSON-LD