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@cryptocoin
4 Aug 2022
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on: mCaptcha: Proof of work based, privacy respecting CAPTCHA
bitcoin
Demo:
https://demo.mcaptcha.org/widget/?sitekey=pHy0AktWyOKuxZDzFfoaewncWecCHo23
https://github.com/mCaptcha/mCaptcha#demo
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preview
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100 sats