Block top - The block quantity 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://socialbaskets.com/story6483782/the-definitive-guide-to-explorer-blockchain-ethereum-https-heavenarticle-com-author-pathpastor4-452336