Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (Remember this begins at 0 so a nonce of one hundred would in fact be the one hundred and first transaction submitted https://telebookmarks.com/story11134695/the-blockchain-explorer-usdt-trc20-diaries-https-www-demilked-com-author-brokerwhorl5