Block top - The block range and size on the blockchain (in blocks) on creation of the current block Nonce - The transaction number with the from address (Keep in mind this begins at 0 so a nonce of 100 would actually be the one hundred and first transaction submitted https://bookmarkport.com/story22849589/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-md-swk-web-com-onnbpblstmy8giqdrhnkga