Copyright Evidence Offline Verification

Import an evidence package, provide chapter text, and independently recompute the hash chain in your browser — no need to trust our servers.

1 Import Evidence Package
2 Provide Chapter Text
3 Verification Results

Import Evidence Package

Please upload the copyright evidence JSON file (.json) downloaded from FlowDream, or paste the JSON content directly.

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Click to select or drag a .json file here

or paste JSON content directly ▸

This tool uses the browser's native Web Crypto API to compute SHA-256.

All computations are performed on your device — nothing is sent to any server.Learn about copyright verification