加拿大不可能配合国外边检来鉴别加拿大证件的真伪或者有效性。任何一个国家目前都不会这么做。可以看看这篇文章讲,迪拜机场如何鉴别护照的真假。大致是说看护照的security features, 以及把旅客的护照和机场存有的真护照的样本对照。通篇没有提说和发照国来联系鉴别的。
The security features available in majority of passports worldwide, which determine whether the documents are genuine or not, include the watermark or coloured fibres on passport pages. Moreover, the centre has a database containing specimens of all passports in the world to make a comparison when needed.
这里帖子的回复确实很多完全是想当然的。