何だか悲しくてやりきれないじゃんよ!

Recording by Hiroyuki Namba.

Recording identifiers

ISRC
JPVI01426990
CopyrightID (CopyrightChains transaction hash)
0x3460c427fd24b3cf7400e231f4006deb4e2310b1ba7e6ca33d1237c074c9c6ec
Copyright registration time
2026-06-20T23:29:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e5ab4832ea75e704fb367dec103212b172330de714c4df3a8e1157c03bb65f92

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.