口約束

Recording by Nogizaka46.

Recording identifiers

ISRC
JPU901601308
CopyrightID (CopyrightChains transaction hash)
0x9865db82678b17e588c9dc725c40dabbab20a3eef6652f7a4e2cb8d676388f72
Copyright registration time
2026-06-09T23:59:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:f696257754ee966ff09fbb8c603e673f8f0c65bafb2b617252177c9a92aa33b6

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.