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://bookmarkusers.com/story20032305/details-fiction-and-explorer-blockchain-ethereum-https-doodleordie-com-profile-brokerdrop7