Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity 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://gogogobookmarks.com/story20229899/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-peatix-com-user-27717689