what if? Off Vocal Ver.

Recording by Yoko Takahashi.

Recording identifiers

ISRC
JPKI02311499
CopyrightID (CopyrightChains transaction hash)
0x6b0a004d495665d3fd8a4b140ee3a437b9f5e894d76d1c03a66716a49dffe3c0
Copyright registration time
2026-06-26T16:14:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:5e24b3da659db6848d103f86ef4254799a7c1213d0cbcee5415b0a566654b6b6

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.