BookCrossing provides an identification number to stick inside the book.

BookCrossing 提供了一个可粘贴在书中的识别号。

But many American banks will accept taxpayer identification numbers and consular ID cards, which can be obtained irrespective of immigration status.

但是很多美国银行也接受纳税识别号码和领事身份证。这两项证明不管什么身份的移民都可获得。