Wicketkeeper – privacy-friendly, self-hostable PoW CAPTCHA
github.comGo based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068 Has a nice diagram showing how it works protecting web forms.
Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068 Has a nice diagram showing how it works protecting web forms.