二番星が灯る前に

Recording by 柳川和樹.

Recording identifiers

ISRC
JPD101950357
CopyrightID (CopyrightChains transaction hash)
0x67fffb9266d9e8e460263b78f1c2267f2def0227801fa17d6e2af7e647361f9f
Copyright registration time
2026-06-20T20:16:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:162e3a627f555776b5fc1d763df8b01bc7f31b7189dffd36405dcb6fc3803e5f

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.