The vendor, who would see that I'd sent it, would be confident that they could then send the product to me, and then when I received it, at least two of the three people engaged in the transaction -- vendor, buyer, site administrator -- would have to sign the transaction off with a unique digital signature, and then the money would be transferred.
ベンダは私が送金したのを見て 安心して商品を私に送ります 私が商品を受け取ると 関わっている三者 ベンダ　買い手　サイト管理者のうち ２人が電子署名を使って 承認することによって ベンダに送金が行われます