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Description
Proof of human writing in Google Docs: typing metrics plus pasted text, to flag AI vs quotes. Your own typed text stays a hash. Human Ink proves that what you write in Google Docs was actually written by a human — you. As you type, Human Ink measures the behavioral fingerprint of real writing: keystroke timing (cadence, rhythm, corrections) and paste events. From that it produces a verifiable proof of human authorship — without ever sending your keystrokes or your own words off your device. Your typed text is turned into a one-way hash locally; only anonymized metrics and the proof leave your browser. Why it exists AI can generate an essay in seconds, but it can't reproduce the process of a human writing one. Human Ink captures that process, so you can show your work — to a teacher, an editor, a client, or a reader — instead of just asserting it. What it does - Measures typing cadence, speed, and revision behavior live inside Google Docs - Distinguishes text you typed from text you pasted, and flags large paste or AI insertions - Separates legitimate quotes and citations from reworded AI output - Produces content and human-signature hashes you can publish as a durable proof - Keeps a per-document memory across your writing sessions Your privacy - Runs only on Google Docs — nowhere else - Your raw keystrokes and your own typed text never leave your device; they are stored only as a one-way hash - Only anonymized metrics and pasted foreign content are saved, as described in our privacy policy - You can turn tracking off at any time, and request deletion of your data whenever you want Full privacy policy: https://www.humanink.xyz/privacy