Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction variety for that 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://toplistar.com/story22267730/the-ultimate-guide-to-eth-blockchain-explorer-https-case-edu-cgi-bin-newsline-pl-url-https-cryptoexplorerhub-com