No. 9 in D Minor

Recording by Johannes Brahms.

Recording identifiers

ISRC
HKI199223509
CopyrightID (CopyrightChains transaction hash)
0xc622d02f972935bd617e89790acb20747b29db2ec8d7ee37083df7aa5d29ec27
Copyright registration time
2026-06-24T04:56:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:fb29d70bff7b799682aaa81eec60e80552c1c715818f0ed7d3b965aae5765b2f

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.