最後の恋

Recording identifiers

ISRC

JPU902203601

CopyrightID (CopyrightChains transaction hash)

0x4b7c71213c5c969319676e3b6dd0a04a30c4802bf1e9a06191fc1d9c0ae9e0e3

Copyright registration time

2026-07-22T17:27:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-22T17:48:40Z

Bitcoin block

959159

Canonical record hash

sha256:8842024e06fa80e4619d3a28200d0f803c2155aa89bbeb0e47da39c93a40ad73

• 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.