narrow - Live at パシフィコ横浜 国立大ホール 2023.12.22

Recording identifiers

ISRC

JPU902404150

CopyrightID (CopyrightChains transaction hash)

0x70fba0659f5c72a4f6e889c5b0bbd10039ec7e37a153a9412979e7a54203f4d5

Copyright registration time

2026-07-30T10:09:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T10:42:33Z

Bitcoin block

960247

Canonical record hash

sha256:b8a5af8d588dd2c807c1087440b4080001035ecd214d53f1fa283d80df9aebee

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.