Mash Up System

Recording by Nick Sefakis.

Recording identifiers

ISRC
GBWUL2222021
CopyrightID (CopyrightChains transaction hash)
0xbf4f904a8311cbe3cf8758e9ebd000fa3c5ca26b14ea058f9ef87ff5f95cbdd7
Copyright registration time
2026-06-27T01:10:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:8460f31124f6d644389db3a7ddbff73edc67e546549c93eb485b74c60364ca29

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.