今も胸の奥で

Recording identifiers

ISRC

JPPO01137928

CopyrightID (CopyrightChains transaction hash)

0x82ffb97ca2d00df7c1b824af7777a8fd04d7ba8eb78d7d8223659ab72ab17d8d

Copyright registration time

2026-06-05T17:33:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:4900a5ad8cdf7403dff45c05b3eb4949b54db762ceabd6cf981d11321926e4d8

• 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.