First Impression

Recording by 広川恵一.

Recording identifiers

ISRC
JPT332400071
CopyrightID (CopyrightChains transaction hash)
0x5c100e782eb7a08b2518239df0290e44f66f4fe341a83f87296c8d20504fb0e6
Copyright registration time
2026-07-06T19:24:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:5b83f0d084f7faf40546915a7e28ccc867809223d388e74825f8247d8fa67587

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.