signal

Recording by Kalafina.

Recording identifiers

ISRC
JPU901300187
CopyrightID (CopyrightChains transaction hash)
0xa12fc6b3b62585d9ad306cbe6de3de25f9fbe1ded529aebcc04c98d549d3538e
Copyright registration time
2026-06-19T07:32:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:f5e1d6aa46d9fa8db5aaef011bed57ed1ed7d8317d386cc35db6795d2d0cae54

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.