Recording by 友川かずき.

Recording identifiers

ISRC
JPKI08075733
CopyrightID (CopyrightChains transaction hash)
0x16ba2f45f98ffed8ca0f1f70972ae10e974037ffbb8fd39c6a45f258f50a5d03
Copyright registration time
2026-07-07T17:57:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7cc37f657d9d25ff316c9a4ae541f7f4e0dcef91a449f970d48f9ba5c25fef2c

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.