Sis puella magica!

Recording by 梶浦 由記.

Recording identifiers

ISRC
JPE301100654
CopyrightID (CopyrightChains transaction hash)
0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48
Copyright registration time
2026-06-04T08:22:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:5b75fbcf9ebe212a2621b2049c068155f494242d05d265ad435122b4397f813c

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.