君と僕の関係(前田敦子、板野友美)

Recording identifiers

ISRC

JPKI01111527

CopyrightID (CopyrightChains transaction hash)

0x2c2f77d76696ee2fceb334562d8d0a61f69e6191719759a50dbb32c04e22c1eb

Copyright registration time

2026-06-09T15:13:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:625ce176bb361ddcbbdedf8da60cc81664678def5e6379581542578c16119555

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.