13 Apr
2023
13 Apr
'23
12:53 p.m.
On 2023-04-13 15:41, D. Hugh Redelmeier wrote:
In some sense, everyone who needs to sign something has a relationship. Everyone in our society has some kinds of relationship.
So, if I have a signing party with my group of friends and you have one with yours, how do I verify your signature, if I don't know your friends?