Block top - The block selection and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (Remember this starts off at 0 so a nonce of 100 would really be the a hundred and first transaction submitted by https://bookmarks-hit.com/story23334581/what-does-blockchain-explorer-usdt-mean-https-case-edu-cgi-bin-newsline-pl-url-https-cryptoexplorerhub-com