Hamburger

Recording by Biffty.

Recording identifiers

ISRC
FR9FA1800220
CopyrightID (CopyrightChains transaction hash)
0xe716beccd4bfca97aeb176f79b2496a83bf3aaf90efa5578c9a5c0015a6ad39e
Copyright registration time
2026-06-25T21:20:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:be74837124ea84b4a55c5f59539b3848ed640d9bc6fa9a16aea4b4b4d457d427

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.