Topic: Using bitcoin addresses for captcha..... - page 2. (Read 2570 times)
I actually have a site in mind for this based on the blockchain that works like 4chan.
Whats if the amount is in an image format 
That would require humans
That would require OCR or a service like de-captcher. Currently most captchas are images and that doesn't stop spammers. At most you would only double the cost to solve it, nothing more.
You guys are free to implement it. I'll try and break it and if you want.
BTW, the best captchas around are the one that is used on the Bitcoin Faucet(impossible for a bot to solve) and those SolveMedia ones, which may require 2 or 3 tries, but eventually will be solved.
What if you show a full address but highlight the letters and numbers randomly ? It would be an actual working address and the amount to bypass it would be in a pic too.
Whats if the amount is in an image format
That would require humans
That would require OCR or a service like de-captcher. Currently most captchas are images and that doesn't stop spammers. At most you would only double the cost to solve it, nothing more.
You guys are free to implement it. I'll try and break it and if you want.
BTW, the best captchas around are the one that is used on the Bitcoin Faucet(impossible for a bot to solve) and those SolveMedia ones, which may require 2 or 3 tries, but eventually will be solved.
Whats if the amount is in an image format
That would require humans
If its an image it can also be an AD.
Whats if the amount is in an image format
What's the diference between that and just grabbing 5 or 6 random letters/numbers?
You cant pay a normal captcha instead of solving it
Sometimes they are so difficult to solve I just want to tip them a satoshi to let me use the friggin site!
Yes, you can pay a normal captcha... http://de-captcher.com is just one of the dozens of sites that have OCR and human solving available for as much as $2 for 1000 captcha solutions.
Oh i get it : pay this tiny amount to signup and to prove your not a bot
That will not prove you're not a bot as any bot can do that. Scraping the page to see which amount to send to which address and sending a json-RPC command to bitcoind isn't that difficult.
What if you took bitcoin address and turned them into firstbits style addresses and displayed them and users need to enter that correctly as the captcha ?
Can you display only parts of bitcoin addresses in this way programatically ?
Can you display only parts of bitcoin addresses in this way programatically ?
What's the diference between that and just grabbing 5 or 6 random letters/numbers?
You cant pay a normal captcha instead of solving it
Sometimes they are so difficult to solve I just want to tip them a satoshi to let me use the friggin site!
Under this system that is entirely optional.
What if you took bitcoin address and turned them into firstbits style addresses and displayed them and users need to enter that correctly as the captcha ?
Can you display only parts of bitcoin addresses in this way programatically ?
Can you display only parts of bitcoin addresses in this way programatically ?
What's the diference between that and just grabbing 5 or 6 random letters/numbers?
You cant pay a normal captcha instead of solving it
Sometimes they are so difficult to solve I just want to tip them a satoshi to let me use the friggin site!
I could see this working if it required a scan of a qr code and then typing it in but i guess that wouldnt work becuase a bot could read qr codes... Idk
What if you took bitcoin address and turned them into firstbits style addresses and displayed them and users need to enter that correctly as the captcha ?
Can you display only parts of bitcoin addresses in this way programatically ?
Can you display only parts of bitcoin addresses in this way programatically ?
What's the diference between that and just grabbing 5 or 6 random letters/numbers?
You cant pay a normal captcha instead of solving it
Sometimes they are so difficult to solve I just want to tip them a satoshi to let me use the friggin site!
What if you took bitcoin address and turned them into firstbits style addresses and displayed them and users need to enter that correctly as the captcha ?
Can you display only parts of bitcoin addresses in this way programatically ?
Can you display only parts of bitcoin addresses in this way programatically ?
What's the diference between that and just grabbing 5 or 6 random letters/numbers?
What if you took bitcoin address and turned them into firstbits style addresses and displayed them and users need to enter that correctly as the captcha ?
Can you display only parts of bitcoin addresses in this way programatically ?
Can you display only parts of bitcoin addresses in this way programatically ?
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