Block top - The block selection and duration of your blockchain (in blocks) on generation of the current block Nonce - The transaction quantity for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://getsocialsource.com/story5731716/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-articlescad-com-the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096-html