夏もよう

Recording by Kyoko Koizumi.

Recording identifiers

ISRC
JPVI08201340
CopyrightID (CopyrightChains transaction hash)
0xd733ec320106fe969ac2a1dea83fd8b4a1182aa4f895d12e8754750b98f6cdfc
Copyright registration time
2026-07-31T07:51:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:70125e65eca7c125c0915e89484e8401e745eac57dc4499fe6b8ad19af38345d

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.