So how does it really work? In the article a lot of words about obfuscated code reading browser fingerprint, but that's just a fingerprint, a bot can run a brow

So how does it really work? In the article a lot of words about obfuscated code reading browser fingerprint, but that's just a fingerprint, a bot can run a browser as well and fingerprint will not reveal him. How clicking the checkbox helps? Do they measure the delay it takes me to read the captcha request and react by clicking?