Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarksoflife.com/story5889880/not-known-details-about-blockchain-explorer-usdt-trc20-https-atavi-com-share-xftxdaz1pgsb4