Boys & Girls

Recording by Ayumi Hamasaki.

Recording identifiers

ISRC
JPB609920602
CopyrightID (CopyrightChains transaction hash)
0x5c417de2b1a898cf400e13d1c3365459678cd6ed68c2752de164a5a475a23fdd
Copyright registration time
2026-06-23T01:46:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:2f390adee13be27f0a39bab234451f83187fd6c9dff9dbe939f65bda21eac336

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.