Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction range with 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://push2bookmark.com/story20381104/5-essential-elements-for-blockchain-explorer-ethereum-https-www-webwiki-fr-cryptoexplorerhub-com