Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": II. Scherzo

Recording identifiers

ISRC

NLE421800102

Release date of the album this recording appears on

2021-02-07

CopyrightID (CopyrightChains transaction hash)

0x1cfbf5b213f4e2838f45ff60dd2109ab010c06196fe2c7ab2ec235b6f10de344

Copyright registration time

2026-07-07T15:49:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T08:56:20Z

Bitcoin block

957145

Canonical record hash

sha256:68ed124bc9b6deda291ff28d725b9dcc0f014f659b0c3487abfca6a5919cd0d0

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC NLE421800102

What this proof establishes

This recording was released in 2021, 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.