お先にどうぞ

Recording by Hiroshi Kamayatsu.

Recording identifiers

ISRC
JPTO07513500
CopyrightID (CopyrightChains transaction hash)
0x35da2bab4fd743fa96d42451a4147a4e1c71732f0eae4591ba72556cc543f854
Copyright registration time
2026-06-22T15:39:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:49b8ead0fede24c8e2fe3cf6b405ce565c13f12b0a537fb4cf07ac8b1a5aa5b5

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.