Piano Sonata in G Minor, Op. 4 No. 1: III. Rondo: Presto

Recording by Friedrich Kalkbrenner.

Recording identifiers

ISRC
ITN321515366
Release date of the album this recording appears on
2015-06-30
CopyrightID (CopyrightChains transaction hash)
0xf8599347462be6d43bff71b7785900f2a3fe42a1d0707f4c699349d1d2a6f967
Copyright registration time
2026-07-31T00:43:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T02:19:15Z
Bitcoin block
960334
Canonical record hash
sha256:dac2010da8c4e96a559a430f8d9b8a36f9573753f8959bdc057a1c24c7c8fd8d

What this proof establishes

This recording was released in 2015, 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.