Title: [HashCash - Proof of Work CAPTCHA] Unresolved Topics | WordPress.org

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# [HashCash - Proof of Work CAPTCHA] Unresolved Topics

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 * ![](https://s.w.org/plugins/geopattern-icon/captcha-hashcash.svg)
 * [HashCash - Proof of Work CAPTCHA](https://wordpress.org/plugins/captcha-hashcash/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/captcha-hashcash/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/captcha-hashcash/)
 * [Active Topics](https://wordpress.org/support/plugin/captcha-hashcash/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/captcha-hashcash/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/captcha-hashcash/reviews/)