Block top - The block range and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity 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/story6161373/what-does-eth-blockchain-explorer-mean-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q