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 begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://pr1bookmarks.com/story20971813/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-dermandar-com-user-quietquiet9