Block top - The block selection and length from 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 basically be the 101st transaction submitted by this account) https://bookmark-group.com/story5892872/5-essential-elements-for-blockchain-explorer-ethereum-https-atavi-com-share-xftxdaz1pgsb4