when we meet again

Recording by Kei Matsumaru.

Recording identifiers

ISRC
JPB622001487
CopyrightID (CopyrightChains transaction hash)
0x63cd236ad6d6315082729567440c393abf3251eeb8933cb99effb97f0aa25708
Copyright registration time
2026-07-07T17:50:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6795c9b694047536abfa94cc0e0e81609dd5b3ccac71807a43540babea3bd9c1

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.