冥府の城下町

Recording by MAYUKO.

Recording identifiers

ISRC
JPE302200158
CopyrightID (CopyrightChains transaction hash)
0xc4be6d9ec0892ace191180b4099040918c1315fc0c1f01b3d4296e5f7432058e
Copyright registration time
2026-07-06T21:51:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:27d289a0c532bee599be50de6134d142afbfce587f747fd6669edf6556141311

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.