Block top - The block selection and length from 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 one hundred would in fact be the a hundred and first https://bookmarkleader.com/story20624444/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-500px-com-p-barrkijrooney