二人三脚☆宣言

Recording identifiers

ISRC

JPT552200711

CopyrightID (CopyrightChains transaction hash)

0xc513ce92668e3a9267404ee756f5303b19d81e5875ccedebd50f85ab35d5947a

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:e931d47b202701369e4308a843a4ba90db5fee7e5e2be6610f3b0a05d066a255

• 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.