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 truly be the 101st transaction submitted by this account) https://thebookmarkking.com/story20617239/a-review-of-blockchain-explorer-xrp-https-myspace-com-deletescreen7