zero hour

Recording by いとうかなこ.

Recording identifiers

ISRC
JPK631202802
CopyrightID (CopyrightChains transaction hash)
0xcfe45af6476c61e91352e97b8ac0f6bff2743dee7151fee2a6bf6647de2eb371
Copyright registration time
2026-07-07T03:53:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:1b539b05c09909116ae6b2d0b4a4bcfc1f31fee35d13883883f73b5d9f89a0cd

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.