Block top - The block quantity 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 actually be the 101st transaction submitted by this account) https://bookmarkfavors.com/story6467348/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers