Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by https://guideyoursocial.com/story5390591/the-blockchain-explorer-usdt-trc20-diaries-https-diigo-com-010nvri