Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction variety for that from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmark-media.com/story20512464/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-files-fm-f-e6nkandt95