ISRC NLA507928502

Verified recording

NLA507928502 is “Piano Concerto No. 1 in E Minor, Op. 11: II. Romance (Larghetto)” by Frédéric Chopin, registered on the CopyrightChains blockchain with CopyrightID 0xac7f3dd3406d7cff7f9f1f9cd80dd7df23a5049882421bb9568ca402c39966f9 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/NLA507928502.

Recording identifiers

ISRC
NLA507928502
Title
Piano Concerto No. 1 in E Minor, Op. 11: II. Romance (Larghetto)
Artist
Frédéric Chopin
CopyrightID (CopyrightChains transaction hash)
0xac7f3dd3406d7cff7f9f1f9cd80dd7df23a5049882421bb9568ca402c39966f9

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08+00:00
Bitcoin block
956304
Canonical record hash
sha256:1ba3df3c5d1ced65805a29124a4d96d454ff9eedb75f4679fbec0876ac3e188d
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507928502
Bitcoin block existence check
https://blockstream.info/api/block/956304

Full record

Track page: Piano Concerto No. 1 in E Minor, Op. 11: II. Romance (Larghetto) · Machine-readable JSON-LD