Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": III. Allegro ma non troppo

Recording identifiers

ISRC

DEF056400293

Release date of the album this recording appears on

2019-09-13

CopyrightID (CopyrightChains transaction hash)

0x4b3b0a6fbaaa02027b0a6409a71595f9fe61078c415af740f05ccbb93df165c8

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:bf69b2d87c64a1b3a841de8c30d3dc69cf6001455a16e070d1d774d3eb1efa38

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF056400293

What this proof establishes

This recording was released in 2019, 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.