題名の無い不完全な夜に

Recording identifiers

ISRC

JPZ922111812

CopyrightID (CopyrightChains transaction hash)

0x11bfb26ec0cfe927ee44da4c8775e58463302b50954abac4b508ab55cd974a75

Copyright registration time

2026-07-31T05:39:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T05:48:18Z

Bitcoin block

960354

Canonical record hash

sha256:37ab94da9413c94ff7f6f3adae83bc23f2f6997c62fef3f8a0d357530efebd7e

• 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.