Block top - The block selection and length from the blockchain (in blocks) on creation 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/story5609606/the-ultimate-guide-to-eth-blockchain-explorer-https-www-mixcloud-com-brokerfridge5