チセの悲しみ

Recording by Junichi Matsumoto.

Recording identifiers

ISRC
JPVI01840230
CopyrightID (CopyrightChains transaction hash)
0xf504e64101ce2e659cc794c0100279904780a4dbc0def17314bcd5e32914cc5f
Copyright registration time
2026-07-22T16:14:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T16:23:52Z
Bitcoin block
959152
Canonical record hash
sha256:297b6baec5e4f1378d630bfdd1e40a277b05e2be1af8bc42a409f7dfa0e7fb7c

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.