有や無や

Recording by UNDEAD CORPORATION DOUJIN WORKS.

Recording identifiers

ISRC
JPW562106580
CopyrightID (CopyrightChains transaction hash)
0xd59c348f36ae441bb4ec320db6dd550e08e14403f1679be13a9b8598d8aa0823
Copyright registration time
2026-08-01T04:08:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T04:30:37Z
Bitcoin block
960509
Canonical record hash
sha256:ae9d2708d8432cc6b20eea9d63782fd7a1eaf37a61678b81311269f513cbe417

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.