• RobotToaster@mander.xyz
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    9 months ago

    It was the original purpose of the bitcoin algorithm to limit spam.

    If you have to do a lot of maths that takes your computer (for example) 30 seconds, that means it costs 30 seconds of compute to create an account. Nothing to an average user, for a spammer that wants thousands of accounts it gets expensive.

    Several captcha[0] libraries already use this and it’s great for accessibility (normal captchas are terrible for it)

    [0] I know, it’s not technically a captcha.