Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://getsocialnetwork.com/story5835208/top-guidelines-of-eth-blockchain-explorer-https-intensedebate-com-people-hawkwhorl3