夏のコスモナウト - 2020 Remaster

Recording identifiers

ISRC

JPPO02001898

CopyrightID (CopyrightChains transaction hash)

0x4f3d35a1cde1b6617c4f7e7c19a83492909a97b31cfa6aafd24fefe84396902f

Copyright registration time

2026-07-06T07:29:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-13T07:53:33Z

Bitcoin block

957819

Canonical record hash

sha256:f83cc2a16cae65bb93fd2f5c04aaaeeda9c81bbd001e606d5a44c49033681e3e

• 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.