Block top - The block number and size of your blockchain (in blocks) on creation of the current block Nonce - The transaction variety 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://techonpage.com/story6104800/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-canvas-instructure-com-eportfolios-4028322-entries-14252553