Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range 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://social4geek.com/story5845829/the-definitive-guide-to-explorer-blockchain-ethereum-https-atavi-com-share-xftxdaz1pgsb4