Down Town Boy

Recording by Kyoko Koizumi.

Recording identifiers

ISRC
JPVI08801840
CopyrightID (CopyrightChains transaction hash)
0xa8f642eb3ef4a445210ab96e9977e9f9495baecde855535a22ae6a11ad5d7aeb
Copyright registration time
2026-07-30T07:23:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T07:28:30Z
Bitcoin block
960220
Canonical record hash
sha256:1412b2b6b11cdf6ba2af0863d0d96c3f5d8d5102d5f13926007be74e48d2e5a8

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.