Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://dirstop.com/story25136408/the-definitive-guide-to-explorer-blockchain-ethereum-https-independent-academia-edu-drewandreassen4