If I Left London

Recording identifiers

ISRC

USQX91202155

Release date of the album this recording appears on

2012-12-04

CopyrightID (CopyrightChains transaction hash)

0xfd3ecc1584e823e39973b06b1516575d8a143c77e1f81798df885b8dc6ebe54d

Copyright registration time

2026-07-06T11:03:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:6dea1ada67638c0435312deac895f1058b730a71c187af467cce03e165529ef7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USQX91202155

What this proof establishes

This recording was released in 2012, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.