故郷

Recording by Yu Sakai.

Recording identifiers

ISRC
JPPO02201604
CopyrightID (CopyrightChains transaction hash)
0x47172ef280befec858f5354dbc0c95866109577b6cf54282e420d2b1ce1c6f37
Copyright registration time
2026-07-31T05:28:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:48:18Z
Bitcoin block
960354
Canonical record hash
sha256:260e30ac084ebaf3511c8780cb3e41e28af99982426ea1c3a203c73d687714f7

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.