Piano Sonata No. 26, Op. 81a "Les Adieux": II. Abwesenheit. Andante espressivo - Live

Recording by Ludwig van Beethoven.

Recording identifiers

ISRC
DEN960601852
Release date of the album this recording appears on
2017-08-25
CopyrightID (CopyrightChains transaction hash)
0x0397f43d084d82fc401fa054c1ca1f013ec7e42faa51b2f74690f7e12af82d42
Copyright registration time
2026-07-06T09:45:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8c5e37fb3197bd6e8539b409a6062c57cc4bc6b352ac1779009d2b6ab1a2cc84

What this proof establishes

This recording was released in 2017, 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.