Präludium und Fuge in a-moll WoO 9: Fuge

Recording by Johannes Brahms.

Recording identifiers

ISRC
NOEHX1105020
Release date of the album this recording appears on
2011-09-26
CopyrightID (CopyrightChains transaction hash)
0x1c3d9eedd6ed9dbcdd12abf7e0824cae3c230b1d4e4339272f4c288caded2aa5
Copyright registration time
2026-07-07T16:18:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:747d92b476e6017138cd21226ba5bf8f3298907c993df9f6594e2c19102ea922

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.