I can confirm that the Library of Congress Reader card is all it takes to login. And you don’t have to be a US Citizen to get one, but you do need a passport or other US-recognized identification to present and validate in-person in D.C. And you have to do a bit of research on how and where to get it, they don’t just hand them out at the front desk as other libraries might. The Library of Congress uses the card to distinguish researchers from one-off tourists and so while the card is easy to get, they have just enough process in place that it’s clear it’s not a souvenir and you have to traverse a maze of hallways to get it. (Or you had to when I did, at least...) But once you have it, just login online and you’ll have access to Hathi Trust here.
It's too bad you can't just plug-in a license, passport number or something online and get a virtual card. Seems like such as wasted opportunity to expand access to resources for pretty much free.
Yep. I’m a Canadian, got one while visiting family in the US. I did at the time work for the Toronto Public Library, but that wasn’t a consideration for them. :)
