反対言葉 ~山手線ゲーム風~

Recording by 遠山 敦.

Recording identifiers

ISRC
JPCR01406400
Release date of the album this recording appears on
2020-07-08
CopyrightID (CopyrightChains transaction hash)
0x7a4068633c822ca34d007f9ef76c2945eca02d99e88f20c3ad8eab5578fd2b64
Copyright registration time
2026-07-31T14:57:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:fe63b1ff556cf98679dc17698680aeb83617e02a931626d6da09df5bfaa8b5ff

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.