Piano Sonata in C Major, Op. 39 No. 2: II. Andante quasi larghetto

Recording by Jan Ladislav Dussek.

Recording identifiers

ISRC
QMDA61377857
Release date of the album this recording appears on
2013-10-29
CopyrightID (CopyrightChains transaction hash)
0xdbb0493a04c792390556d439952b9d73f27a91fe259492382112d091f17344e3
Copyright registration time
2026-07-07T17:29:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0ed5893d37b9691e58d027dcc3b83474f47a6a578d3c57e4dbfe5d56f36ba22b

What this proof establishes

This recording was released in 2013, 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.