London's Song

Recording by Matt Hartke.

Recording identifiers

ISRC
QZFZ52032000
CopyrightID (CopyrightChains transaction hash)
0xf06222e1ea932f6ba8b8d723431f60e8e446460c11b7881b38f18c206f6cae2c
Copyright registration time
2026-06-01T21:39:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:a462c7c91de4fe6e8d5bd181fdb9c8e333d28daf100a58a9249ecfd84774c5b6

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.