Block top - The block amount and size 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 actually be the 101st transaction submitted by this account) https://socialinplace.com/story5750760/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-md-un-hack-bar-de-0oxwjunrtqeqpltmmf-tlw