虹が消えるまで

Recording by Kyoko Koizumi.

Recording identifiers

ISRC
JPVI00840810
CopyrightID (CopyrightChains transaction hash)
0xb0c92634b4cc28a6ec9a6a8d7bb28aabc11c0324bebadbafe9a5e82ec8777a09
Copyright registration time
2026-07-07T10:34:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:64b1bbe03200f9674e78e4f233f02b713a5ec5191c98a4a7128e0f2474149481

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.