Piano Sonata No. 12 in A-Flat Major, Op. 26: IV. Allegro

Recording identifiers

ISRC

USSM11902392

Release date of the album this recording appears on

2019-09-13

CopyrightID (CopyrightChains transaction hash)

0x9ac9c6547ef622b458c2da57bdf8bfc7110fdb16b6d747a1f7aa5f3fe77b8d39

Copyright registration time

2026-06-21T19:45:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:1f2a2caa48c641fb4af0c6be2b5d80cc0560405610c84e43283da870e07c3846

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC USSM11902392

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.