黒い瞳の少女

Recording identifiers

ISRC

JPTO07511640

CopyrightID (CopyrightChains transaction hash)

0x9c4d3279156b7909e1aa3dcce69856486413b3df73e2f02116a29525ef19fdae

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T03:41:24Z

Bitcoin block

960503

Canonical record hash

sha256:9b11bbcfe6a755b28f19378dd366f1158b17f714b61904ace8491f07409c8b5a

• 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.