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 actually be the 101st transaction submitted by this account) https://wisesocialsmedia.com/story6192344/blockchain-explorer-fundamentals-explained-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya