Reefer Man

Recording by Cypress Hill.

Recording identifiers

ISRC
QMGR31760308
CopyrightID (CopyrightChains transaction hash)
0x972da2939d514e13f0c2315ce128ac2b8154e0cb1f2a64f4c5ed756dfa1fc8d1
Copyright registration time
2026-06-04T15:42:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:cd4021969e5f5d50073057fcf6bd24a348a0fe2e360f038f1b3e7663412dbc11

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.