Block top - The block selection and size of your blockchain (in blocks) on creation of the current block Nonce - The transaction variety to the from address (Remember this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted by this https://thebookmarklist.com/story20543620/blockchain-explorer-fundamentals-explained-https-www-hulkshare-com-circledrop4