Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the 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://siambookmark.com/story20478068/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-www-dermandar-com-user-quietquiet9