坊や

Recording by 友川かずき.

Recording identifiers

ISRC
JPKI07812030
CopyrightID (CopyrightChains transaction hash)
0x21ed1cf0bc0e8aa743a2593e7729cbb197c91b4d2f68d3d96725f6d651c2158a
Copyright registration time
2026-06-28T01:24:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-16T23:58:07Z
Bitcoin block
956375
Canonical record hash
sha256:ce832435158b0f75d2f20999a78fc00ca127b079db8555835391e104b49d19b8

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.