Prelude & Fugue in A Minor, WoO 9: II. Fugue

Recording by Johannes Brahms.

Recording identifiers

ISRC
HKI192307902
Release date of the album this recording appears on
2023-11-10
CopyrightID (CopyrightChains transaction hash)
0x3febdb2dc795178a8d874884c333d83f72e6ba7657d6cc158b0233bcd919b8a7
Copyright registration time
2026-07-07T19:26:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:3d976a1a488c924c7380e6b91a18b32dc8f3d3201a25d97bb35d397587057082

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.