虹と記念日

Recording by Yu Takahashi.

Recording identifiers

ISRC
JPWP01170233
CopyrightID (CopyrightChains transaction hash)
0x34f442ab5893226ef5999a7691db3c8c7086922395a2387faab387245ffa63b7
Copyright registration time
2026-06-24T10:44:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e84a08639d0004dad494b94e3d2a85f5e8f5e8c66e75aff565dcecf2799fed06

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.