METRO

Recording by 蒼山幸子.

Recording identifiers

ISRC
JPM902100133
CopyrightID (CopyrightChains transaction hash)
0x9f983eec0ebc22bd1f93f99776c19c3d790c1f87b6516ad70ec586ecd6ebaeba
Copyright registration time
2026-06-28T00:42:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:30079f118d43c9907f33197f1dc04920f76108f7e17a8cb493ff344054da57ed

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.