Humble Bundle Gift Links Expire?

As i observed before, they aren't expire but this answer won't be so accurate, so please don't rely on it.

If you purchase a gift and send it to your friend, if he redeems the games then it will just say 'already redeemed' whenever you try to go to that link again. If you claim the page you will be able to come back to it. (the friend will probably claim the page).

i already see peoples, with make gift links for every game in the bundle and these links don't work a long time after, maybe only coincidence but well,
i think the best is store the full link for the bundle, and keep user/password in you brain XD, for create the gift link when you will send it.

i did this.

Yes the links will always work, the only possible problem of turning gifts into links would be someone bruteforcing it except the size of the key means...Insert long math explanation... In other words unless the entire world decides to use every single computer ever built to make the attempt you have nothing to worry about. So it is far more important to be careful what do you with your account and the files where the links are.