Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the 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://reallivesocial.com/story6303396/5-tips-about-blockchain-explorer-you-can-use-today-https-www-multichain-com-qa-user-knotdrop3