Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://infopagex.com/story5612994/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-www-dermandar-com-user-quietquiet9