ISRC NLA507722828
Verified recording
NLA507722828 is “Largo in E flat, Op. posth.” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe1d7d77395902e0a86ff897b9248f66b7f67308de260d6987aecc035f937c559 and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507722828.
Recording identifiers
- ISRC
- NLA507722828
- Title
- Largo in E flat, Op. posth.
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe1d7d77395902e0a86ff897b9248f66b7f67308de260d6987aecc035f937c559
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:5bcad1d752cfef37176e5700e24d0ad726b33edb37b0edd448b741e05fdeda67- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507722828
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Largo in E flat, Op. posth. · Machine-readable JSON-LD