How to GET reCAPTCHA picture address?

Question

This is my idea:

1. I get this address from source, for example: http://api.recaptcha.net/challenge?k=6Lc_Wb0SAAAAAPpDWSnsxg7rFxSJT46Wmic3Ximb

2. Then I get "challenge" from this site, for example: challenge : '03AHJ_VuumDpsD-dz-rSeL_Vyd5fUqHMJLNtlpiyaEq0RzDhsaNTWTydaOcYk5cdRX55C6VyaojWJwCa6T6PF8LF4Io5NUC09Kj0HRNczh9tJXBsrx26BcfBtrwvPabvbR_SnJXdmc9YS2L76PqI9EdtfXPhhCV9V2jw'

3. Then I get address of picture, for example: http://www.google.com/recaptcha/api/image?c=03AHJ_VuumDpsD-dz-rSeL_Vyd5fUqHMJLNtlpiyaEq0RzDhsaNTWTydaOcYk5cdRX55C6VyaojWJwCa6T6PF8LF4Io5NUC09Kj0HRNczh9tJXBsrx26BcfBtrwvPabvbR_SnJXdmc9YS2L76PqI9EdtfXPhhCV9V2jw

But there is a problem - pic is other than I have to write. Can you tell me how I can get oryginal address?

Answer 1

If the image you get doesn't match up with the one that you have to type then I'm guessing you aren't passing the same challenge code to the verification method of the api as to the image part.

It would help if you could paste a bit of code.