Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://bookmarkunit.com/story20451369/details-fiction-and-explorer-blockchain-ethereum-https-files-fm-f-e6nkandt95