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 (Remember this commences at 0 so a nonce of a hundred would essentially be the one hundred and first transaction submitted by https://bookmarkusers.com/story20110824/a-review-of-blockchain-explorer-xrp-https-peatix-com-user-27717689