Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Keep in mind this commences at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://apollobookmarks.com/story20652324/a-review-of-blockchain-explorer-xrp-https-www-instapaper-com-p-16864836