Theme Ⅱ

Recording by 優河 with 魔法バンド.

Recording identifiers

ISRC
JPG102300403
CopyrightID (CopyrightChains transaction hash)
0x77425e9d147542b93a279ef59a321b1925c4e482acb19c3538cb77f849c869d9
Copyright registration time
2026-07-29T14:12:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T14:28:24Z
Bitcoin block
960117
Canonical record hash
sha256:b828f42723bbccc4edc15739bc3c0f158050e521b2ef1962258d0d011515280a

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.