Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection 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://socials360.com/story11106556/5-essential-elements-for-blockchain-explorer-ethereum-https-www-webwiki-de-cryptoexplorerhub-com