夜と日時計

Recording by Ozawa Kenji.

Recording identifiers

ISRC
JPTO09329000
CopyrightID (CopyrightChains transaction hash)
0x738e22a7768e1f89dc86caeaec4e1f4b130db26aa49a7258a5a4ebfafe7975a7
Copyright registration time
2026-06-22T05:38:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:0690e29ca982057ae78a83112e219e8f62ed70e9df4d0e66c594eda146d66c56

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.