Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://optimusbookmarks.com/story20527391/indicators-on-blockchain-explorer-search-you-should-know-https-500px-com-p-barrkijrooney