Block top - The block selection and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction number 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://socialbuzzfeed.com/story6005462/5-simple-techniques-for-explorer-blockchain-base-https-www-folkd-com-submit-cryptoexplorerhub-com