perc city

Recording identifiers

ISRC

QZWFH2390684

CopyrightID (CopyrightChains transaction hash)

0x418b939a9d8a82326d49b9d07cad6d1751e067ee5fe392f5a6bf3e22c8ea99e4

Copyright registration time

2026-06-20T14:02:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:5fd0a6d4960f89925d823faaac247974a2e0892cef2f76732cd868e3cb6386a0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.