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 a hundred and first transaction submitted https://bookmarksaifi.com/story20300627/what-does-blockchain-explorer-usdt-mean-https-www-pdc-edu-url-https-cryptoexplorerhub-com