MASK

Recording by Ayumi Hamasaki.

Recording identifiers

ISRC
JPB602204395
CopyrightID (CopyrightChains transaction hash)
0x58a59317b75f3b8c61190b05c0efc240e013bf2c937aa9e360c69a189bb20029
Copyright registration time
2026-06-17T22:36:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:2966b509bf1c93feab293540ae485a161c59b85e905382d79e103b63195be16a

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.