蜜柑色の夏休み

Recording by Masaharu Fukuyama.

Recording identifiers

ISRC
JPPO01086170
CopyrightID (CopyrightChains transaction hash)
0x2423b879ba44e62c12797c40faa3cb38b17234deef75efd4c2a0b1226a415233
Copyright registration time
2026-06-25T20:23:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:f6fcdfb8c6aed3cbef60e94bcb08fb1c8309b9fc1eb4bbcf2900d348829c6b1a

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.