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Recording by 春口雅子.

Recording identifiers

ISRC
JPCR09701870
CopyrightID (CopyrightChains transaction hash)
0xd4eb367b830500afe9e762e50f12eb0c562a5b1fb1989e33b69c61b92442e6fe
Copyright registration time
2026-07-06T19:58:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dbe51c942e0f70867bf247fde472e50949d0811bf9f9b542bb33defc25d7e480

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.