Variations and Fugue on a Theme by Handel, Op. 24: Variation XXI - Live

Recording by Johannes Brahms.

Recording identifiers

ISRC
GBF071741922
Release date of the album this recording appears on
2018-03-09
CopyrightID (CopyrightChains transaction hash)
0xbfb6e3543d06a7c75b469ae5258d6e86eec6e99d108f95ff9da67c8b880f9736
Copyright registration time
2026-07-07T06:46:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:04b20e85aebb3454148f7498a90cda77cb57bf3736762eb981e8e60ab5dd1b4b

What this proof establishes

This recording was released in 2018, 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.