Club de fitness

Recording by Biffty.

Recording identifiers

ISRC
FR9FA1800380
CopyrightID (CopyrightChains transaction hash)
0xfb7526c99bf4fb1a75b06ce99d80c5bb1b34c0cc726a348877a3a98cffffb437
Copyright registration time
2026-07-06T05:31:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:3e43224dc254515f99556fdbab6bb7008ef93ce2e69735433e61b2f7c0ac79bd

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.