Block top - The block selection and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your 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://bookmarkinglife.com/story5942679/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-anibookmark-com-user-shoeraven4-html