Hmm. They do have that kind of ability, although I'm not sure what happens with the information stored if someone... is gone from Vaikuntha.

Would the Sea here remember? If it does, then you can do that - and, if you wish, I can make dry-land copies of your notes to be stored at some places around the world, for those who might not think to ask the Sea.

[ He's making an awful lot of guesses, but preserving information is... very important, really. ]