Block top - The block quantity and duration from the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this begins at 0 so a nonce of 100 would essentially be the 101st transaction submitted by this account) https://baidubookmark.com/story20439120/a-review-of-blockchain-explorer-xrp-https-atavi-com-share-xftxdaz1pgsb4