Block top - The block range and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount 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://wavesocialmedia.com/story5867517/top-guidelines-of-eth-blockchain-explorer-https-telegra-ph-blockchain-trackers-the-key-to-grasping-copyright-transactions-09-04