Keyboard Sonata in B-Flat Major, Wq. 54/4, H. 206: I. Allegretto

Recording by Carl Philipp Emanuel Bach.

Recording identifiers

ISRC
DEA551432321
Release date of the album this recording appears on
2014-04-29
CopyrightID (CopyrightChains transaction hash)
0x9d304c7cd91030dc99c62b2c6164ca83df5de96f99c929e0bf3847b74bc2051c
Copyright registration time
2026-06-25T07:57:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:fbf68efe31fcbac2603e6c521c03c577f65642b854646926cace5804daf67da7

What this proof establishes

This recording was released in 2014, 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.