my book

Recording by Yoko Kuzuya.

Recording identifiers

ISRC
JPES00100681
CopyrightID (CopyrightChains transaction hash)
0xbcff2da97c0c7384d7d5643eb778c3428990d03399b53674d133f50c92a6c114
Copyright registration time
2026-06-19T21:10:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:2053c0229e34c37b5961055a2517f17b9658fda7e3e734e01cdc3f5562648e51

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.