Piano Sonata No. 26, Op. 81a "Les adieux": I. Das Lebewohl. Adagio

Recording identifiers

ISRC

FR3KD1504399

Release date of the album this recording appears on

2016-04-08

CopyrightID (CopyrightChains transaction hash)

0xca311e250af1f91aeed6e25dfa781036fc38676e875bc9f948aad7ece29109b1

Copyright registration time

2026-07-31T19:19:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:e6f070cc0a44173537f3dba047a37afd37c151124ee5ac5eacbe080039558a70

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC FR3KD1504399

What this proof establishes

This recording was released in 2016, 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.