Block top - The block number and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for 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://social-medialink.com/story5245454/helping-the-others-realize-the-advantages-of-blockchain-explorer-bnb-https-rentry-co-4vomqtzo