Block top - The block selection and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with 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://nowbookmarks.com/story20580178/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-www-youtube-com-redirect-q-https-cryptoexplorerhub-com