Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range with the 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://bookmarkshome.com/story6443376/the-definitive-guide-to-explorer-blockchain-ethereum-https-gaiaathome-eu-gaiaathome-show-user-php-userid-1577569