Here's a short explanation video to get you started. The general idea is that multiple signers are used, such that an outside observer doesn't know which signer

Here's a short explanation video to get you started. The general idea is that multiple signers are used, such that an outside observer doesn't know which signer is the "real" one, but only knows that "at least one of them" is. https://www.youtube.com/watch?v=zHN_B_H_fCs https://www.youtube.com/watch?v=zHN_B_H_fCs