this post was submitted on 07 Jul 2025
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[–] [email protected] 75 points 1 day ago (2 children)

Exactly. It's called proof-of-work and was originally invented to reduce spam emails but was later used by Bitcoin to control its growth speed

[–] [email protected] 7 points 22 hours ago (2 children)

It's funby that older captchas could be viewed as proof of work algorithms now because image recognition is so good. (From using captchas.)

[–] [email protected] 1 points 2 hours ago* (last edited 2 hours ago)

That's actually a good idea. A very simple "click the frog" captcha might be solvable by an AI but it would work as a way to make it more expensive for crawlers without wasting compute resources (energy!) on the user or slowing down old devices to a crawl. So in some ways it could be a better alternative to Anubis.

[–] [email protected] 4 points 17 hours ago* (last edited 17 hours ago)

Interesting stance. I have bought many tens of thousand of captcha soves for legitimate reasons, and I have now completely lost faith in them

[–] [email protected] 4 points 1 day ago (1 children)

it wasn't made for bitcoin originally? didn't know that!

[–] [email protected] 11 points 1 day ago (2 children)
[–] [email protected] 12 points 1 day ago

you know it's old when it doesn't have ssl