Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for your 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://fatallisto.com/story10329871/top-guidelines-of-eth-blockchain-explorer-https-www-demilked-com-author-brokerwhorl5