Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://binksites.com/story10351337/a-review-of-blockchain-explorer-xrp-https-canvas-instructure-com-eportfolios-4028322-entries-14252553