Ragnarok

Recording by Masashi Hamauzu.

Recording identifiers

ISRC
JPA840900777
CopyrightID (CopyrightChains transaction hash)
0x149f734b1c2688330debe17df0c11d6a1466701a36c0923e56b6101b365afe99
Copyright registration time
2026-06-09T16:39:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:a57c7840c7426107b622e1149d7db458ac725e394d04754a73892236da043986

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.