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

Recording by Johannes Brahms.

Recording identifiers

ISRC
HKI192307901
Release date of the album this recording appears on
2023-11-10
CopyrightID (CopyrightChains transaction hash)
0x733ddb372ff2ff430737abae49fa0a65dae68bf609187f4dab73b85e5ba9b18e
Copyright registration time
2026-06-11T18:54:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:bbc96004eed19c18431a70cac4f8256bec2235a81cea68172b12bc51b83e0c81

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.