どうして僕らは

Recording by 三宅伸治.

Recording identifiers

ISRC
JPV502500024
CopyrightID (CopyrightChains transaction hash)
0x3495258a1e7ae9070e919e2a5323cf73fb612261bb6c1a17460de6ad700e4756
Copyright registration time
2026-07-31T12:43:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T13:04:34Z
Bitcoin block
960403
Canonical record hash
sha256:c320029aae2bb495aa4f875f44bfb36343789d71267edee328017567ee25eba5

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.