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 (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Not simply https://bookmarkinginfo.com/story20675631/what-does-blockchain-explorer-usdt-mean-https-atavi-com-share-xftxdaz1pgsb4