Dear Friend

Recording by Izumi Nakagawa.

Recording identifiers

ISRC
ATMA40510137
CopyrightID (CopyrightChains transaction hash)
0x6f1157d48f28190ab04cdded40ac35cd8229797766c241b6cdada37e72f3db83
Copyright registration time
2026-07-31T09:39:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T09:50:37Z
Bitcoin block
960383
Canonical record hash
sha256:1db6d06a6c33d8c5f79a7febe0346e9ee775c442cd883a8b0668f81e0b9890f1

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.