Variations & Fugue on a Theme of Mozart, Op. 132: Var. 3, Con moto

Recording by Max Reger.

Recording identifiers

ISRC
DEB260600484
Release date of the album this recording appears on
2007-01-01
CopyrightID (CopyrightChains transaction hash)
0xb9efaf1c16bf751cc1ce6187bf717e3d43eb3500417f869c211eb2ae1b633ced
Copyright registration time
2026-07-30T23:00:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:b40bc53b8bb229d3b7de626e4686274bd99146329271ff1cef28855979221040

What this proof establishes

This recording was released in 2007, 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.