Block top - The block selection and duration of the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Contract creation https://thekiwisocial.com/story5979893/not-known-facts-about-blockchain-explorer-usdt-https-bbs-pku-edu-cn-v2-jump-to-php-url-https-cryptoexplorerhub-com