Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety 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://infopagex.com/story5906903/top-guidelines-of-eth-blockchain-explorer-https-www-anibookmark-com-user-shoeraven4-html