The Laughing Policeman

Recording by Charles Penrose.

Recording identifiers

ISRC
GBAYE9901654
CopyrightID (CopyrightChains transaction hash)
0x72d24452eb7d8b251c8b08f6da85dc60eb2fc13c67ec727394b7cd0b9513b226
Copyright registration time
2026-06-18T19:05:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9ff19d92dd6c699ddcbfed0d57ddbb1a6fce4cc025aaceb959655c96607a120e

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.