思い返せば

Recording by 中村巴奈重.

Recording identifiers

ISRC
JPL802123005
CopyrightID (CopyrightChains transaction hash)
0x07b370067630baa9476e9159cfb0c1cae17a21fdbcb97e3260b161af03052f87
Copyright registration time
2026-07-29T16:20:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:70adcb39a35074a4a9905cc5d67270c36f5b83bbea1600b90164a3cbacccbfe2

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.