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 one hundred and first transaction submitted by this https://bookmarkeasier.com/story20151605/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-heavenarticle-com-author-pathpastor4-452336