Block top - The block amount and length with the blockchain (in blocks) on generation of the present block Nonce - The transaction range for the from address (Keep in mind this starts at 0 so a nonce of one hundred would essentially be the a hundred and first transaction https://captainbookmark.com/story20350977/a-review-of-blockchain-explorer-xrp-https-pad-karuka-tech-vc6p2vmyr6a9ij1xxkanwg