Last Call

Recording by C4C.

Recording identifiers

ISRC
QZHN92123315
CopyrightID (CopyrightChains transaction hash)
0x5540d469c7f9764c3755c4a68727baf6d5bbcf3cbb27c98e577fa9aabdb39633
Copyright registration time
2026-06-21T16:07:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3e4d98d28fd8ec54b7ee28e77eb1a367712eb20f08fbf158bce1a0ce4310bf9f

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.