ひかりふる

Recording by Kalafina.

Recording identifiers

ISRC
JPU901201401
CopyrightID (CopyrightChains transaction hash)
0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
Copyright registration time
2026-06-07T18:43:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:5bb43a9f48be2d1aef845be7633c11b325031c8fc761a5677af712b179805544

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.