Protocol Hosting Google reCAPTCHA Competitor Expands to Polkadot by CoindeskDecember 3, 2020 Human Protocol, home of the anti-bot hCaptcha system, announced it is expanding beyond Ethereum to a future Polkadot parachain, Moonbeam. Source Tagged : All News / Business / Decentralization / Ethereum / Human Protocol / Machine Learning / Moonbeam / Polkadot