Brown Acid

Recording by Machine Head.

Recording identifiers

ISRC
NLA320119587
CopyrightID (CopyrightChains transaction hash)
0xbfefeb8bccf958d47d5ced2c529622f03ced07ca53b051a7c19ded06b5a14bfc
Copyright registration time
2026-06-18T12:37:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:8127e9775a083b8783cbd1a3ffd2740eac78cda5a13270661df1d8872048f450

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.