Block top - The block variety and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (Remember this starts off at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted by https://top100bookmark.com/story20858711/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-www-multichain-com-qa-user-knotdrop3