君と蛍火(with 二羽凛奈 & 朔間咲)

Recording identifiers

ISRC

JPW562108492

CopyrightID (CopyrightChains transaction hash)

0x53228c5b49d53e821cd54b2ea0e0dc61a4a8b6f85fa657d5f38029a6c378db68

Copyright registration time

2026-07-07T02:39:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:26508771b3b36606774064e019e404941831033d0a31a5235aac190b0652f822

• 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.