Sonata for Pianos, Op. 34: II. Andante, un poco adagio

Recording by Johannes Brahms.

Recording identifiers

ISRC
USSJ17000746
Release date of the album this recording appears on
2009-01-01
CopyrightID (CopyrightChains transaction hash)
0x4e4be52c67c81ac46a2163043ebb0709eb2c1c90f002f65f544d38ca089aba15
Copyright registration time
2026-07-31T11:38:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:cbf6e3cc40aeea8760139a706726501aef5e9a7d825bf9c41e273dd486086fc2

What this proof establishes

This recording was released in 2009, 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.