Today

Recording by 川村ゆみ.

Recording identifiers

ISRC
JPK651668221
CopyrightID (CopyrightChains transaction hash)
0x85f161d5fa44c1050edb76537466df9364ff490361537c7e5d1dcae531fbdede
Copyright registration time
2026-07-06T21:50:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:19558f34abfa0175b89af81ff057d922b5b8e0994e68f155be9059ed1db5f788

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.