Block top - The block number and size of your blockchain (in blocks) on generation of the current block Nonce - The transaction number for your from address (Keep in mind this starts off at 0 so a nonce of 100 would really be the one hundred and first transaction https://pr6bookmark.com/story20413395/5-easy-facts-about-blockchain-explorer-api-described-https-atavi-com-share-xftxdaz1pgsb4