限りある時間

Recording by Lisa Yamaguchi.

Recording identifiers

ISRC
JPVI01103350
CopyrightID (CopyrightChains transaction hash)
0x77149ed6c61ba2e2bbc29f4ef22be91c3fb9d45ff1840417ff2244457d401706
Copyright registration time
2026-08-01T03:58:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T04:30:37Z
Bitcoin block
960509
Canonical record hash
sha256:52c56dd6d1414f4875a28e05aa309fb5356a19b4ee6b698c4f2dc91fee8cda89

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.