ByHuman

Trust layer for human writing: proof-of-effort receipts for X/Twitter and Gmail, and a feed filter for low-quality posts on X.

ByHuman makes observable writing effort visible — in what you write, and in what you read. WRITING RECEIPTS Write a tweet or an email as usual. ByHuman tracks how the text was composed — typed, pasted, deleted — right in the composer, locally. When you post, you get a tamper-evident receipt: a signed proof page showing your writing process. Add an optional stamp line so readers can verify it in one click. Your text is never stored — only a cryptographic hash. FEED SHIELD (new in 1.5) Dim, collapse, or hide posts with observable low-quality signals: crypto spam, promo blasts, engagement bait, generic advice, formulaic threads, hashtag walls. You choose the categories and the action. Every decision is explained, reversible, and correctable. Classification runs entirely in your browser by default. An optional AI engine (opt-in, requires sign-in, 500 free analyses per month) sends post text to our server for higher-accuracy classification — only a hash is cached, nothing is stored or used for training. PRIVACY No browsing history. No reading outside the active composer and the visible feed. Full policy: https://byhuman.ink/privacy ByHuman does not detect AI authorship — no tool reliably can. It proves observable process for writers who want to show their work, and filters observable patterns for readers who want a cleaner feed.