Block top - The block range and size 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://funny-lists.com/story21490825/top-guidelines-of-eth-blockchain-explorer-https-www-folkd-com-submit-cryptoexplorerhub-com