Recording by 友川かずき.

Recording identifiers

ISRC
JPKI08075728
CopyrightID (CopyrightChains transaction hash)
0x03fc665e226b8dbaa2c019c05b7646357bea355a2c1e6dcf23839ef0e27207d4
Copyright registration time
2026-07-07T20:38:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:5c677d2f9dccaba9c0429734506b7d6f78e59f163bd3039139760035d71eb118

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.