Block top - The block selection and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://monobookmarks.com/story20698821/5-tips-about-blockchain-explorer-you-can-use-today-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers