Präludium und Fuge in a-moll WoO 9: Präludium

Recording by Johannes Brahms.

Recording identifiers

ISRC
NOEHX1105010
Release date of the album this recording appears on
2011-09-26
CopyrightID (CopyrightChains transaction hash)
0xe5d08ebb21a20d97436b5ed6b6ddf2aa0d6cc45d21bbd215cfd36317f71a3697
Copyright registration time
2026-07-31T17:38:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:e24f1db502dd0679e6b40905a388d3da64d49bcd50c0fa3a353fdb710b956ade

What this proof establishes

This recording was released in 2011, 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.