Block top - The block range and length on the blockchain (in blocks) on generation 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 101st transaction submitted by this account) https://fatallisto.com/story10239324/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-posteezy-com-past-these-blocks-discovering-realm-copyright-explorers