Hi there,
I already bid on your project on oDesk. So if you want to have a look at my profile, feel free to go there.
I had a look at the page in the project description and I already have a working snippet of Ruby code (only dependency is to 'net/http') taking as option document type, document id and date of birth and returning a boolean wether the document is valid or not.
I'd be happy to provide you that code or even do the integration myself as soon as you award me the project.
Regards
Romain