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 truly be the a hundred and first transaction submitted https://siambookmark.com/story20293291/what-does-eth-blockchain-explorer-mean-https-files-fm-f-e6nkandt95