Keyboard Sonata in G Major, K.523/L.490/P.527 (arr. I. Friedman for piano)

Recording by Ignaz Friedman.

Recording identifiers

ISRC
HKI191516010
Release date of the album this recording appears on
2016-08-12
CopyrightID (CopyrightChains transaction hash)
0xedaa83fbdfb6bacff5c9b806779d66d1495503ddf6e2b041e9c1fd4b0999ce03
Copyright registration time
2026-06-10T02:07:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f0e09202f77fae0c437d2eec8b66571243866919b588e478160e2755dc8f4249

What this proof establishes

This recording was released in 2016, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.