かけがえのないもの

Recording by ZARD.

Recording identifiers

ISRC
JPC400712043
CopyrightID (CopyrightChains transaction hash)
0x76c83168ad45af3004ce2bf59e8ff700b378e8e89b54976a855649871907201f
Copyright registration time
2026-06-25T18:04:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T11:38:34Z
Bitcoin block
956351
Canonical record hash
sha256:fc14f1dbeace9de0591794a2f551f92d6bf51a43c8554a584ceb7655f27106b6

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.