Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this commences at 0 so a nonce of a hundred would actually be the one hundred and first transaction https://bookmark-share.com/story20416844/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-demilked-com-author-brokerwhorl5