Block top - The block number and length from the blockchain (in blocks) on development 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://exactlybookmarks.com/story20743047/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-heavenarticle-com-author-pathpastor4-452336