さよなら人類

Recording by Izutsu Akio.

Recording identifiers

ISRC
JPK891600042
CopyrightID (CopyrightChains transaction hash)
0x1648aa1d83d26d25f7f7338cc9ba62b94441b36e283728d3708429683a543a7a
Copyright registration time
2026-07-31T12:00:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:35227b06c5622a390e432ac6138f57a326a7704ef99f90881fe6398ac3bc8ebd

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.