Developer Builds Zero-Knowledge Protocol to Verify Human Typing Patterns

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A developer named Alejandro Gutiérrez has created PoHI (Proof of Human Intent), an open-source protocol designed to cryptographically distinguish human typing from bot-generated input. The system analyzes behavioral signals such as keystroke timing, cognitive-latency ratios, and error-recalibration variance, compiled into a zero-knowledge circuit using Circom and Groth16 over BN254. Rather than analyzing what was typed, PoHI focuses on how it was typed, capturing only keystroke press and release timestamps in milliseconds. The project includes an adversarial evaluation harness testing six attacker models, including one with full knowledge of the scoring function. Gutiérrez has made the protocol publicly available on GitHub and is seeking real human typing data via a web demo to stress-test the system's robustness.

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