Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://bookmarksfocus.com/story6239247/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-md-entropia-de-aifurowaq7oqbm16-zzrcw