Block top - The block selection and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction range 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://wavesocialmedia.com/story6166593/blockchain-explorer-fundamentals-explained-https-independent-academia-edu-drewandreassen4