椿説丹下左膳

Recording by 友川かずき.

Recording identifiers

ISRC
JPKI08177786
CopyrightID (CopyrightChains transaction hash)
0x7f55c88ffe6fa7cf22745bca2abc95fd70f198e79daf44a8832e7ddca4eb6cf4
Copyright registration time
2026-07-31T08:11:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:285fa0b7246b30ddaafb66667b1277f7a4ac16c73e37a7ecc38cec0ea473da0d

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.