必死の奮戦

Recording by 伊藤真澄.

Recording identifiers

ISRC
JPI102102338
CopyrightID (CopyrightChains transaction hash)
0x5e596a14d6f8ffaa2bd97a1d67520aa67b418bf9725175787ee9c3a50c82924d
Copyright registration time
2026-07-29T14:13:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T14:28:24Z
Bitcoin block
960117
Canonical record hash
sha256:ca15f50cc43ad873f557924d20566ce8fbdfce7d544cca3cb7bb15194c0f80f1

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.