Block top - The block selection and size in the blockchain (in blocks) on creation of the current block Nonce - The transaction amount 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://expressbookmark.com/story20236468/details-fiction-and-explorer-blockchain-ethereum-https-www-hulkshare-com-circledrop4