Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (bear in mind this starts off at 0 so a nonce of 100 would really be the 101st transaction submitted by this https://my-social-box.com/story6172555/explorer-blockchain-base-an-overview-https-intensedebate-com-people-hawkwhorl3