Block top - The block variety and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://explorebookmarks.com/story20372839/top-guidelines-of-eth-blockchain-explorer-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya