Block top - The block selection and duration of the blockchain (in blocks) on creation 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://socialmediaentry.com/story6054470/not-known-factual-statements-about-blockchain-explorer-tool-https-cuwip-ucsd-edu-members-georgeuncle0-activity-1839979