Block top - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://webookmarks.com/story6318973/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-intensedebate-com-people-hawkwhorl3