Block top - The block number and size with the blockchain (in blocks) on generation 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://bookmarkfox.com/story5830644/the-blockchain-explorer-usdt-trc20-diaries-https-diigo-com-010nvri