Block top - The block number and length in the blockchain (in blocks) on development of the current 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://fatallisto.com/story10190211/getting-my-blockchain-explorer-ethereum-to-work-https-heavenarticle-com-author-pathpastor4-452336