Block top - The block number and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for the from address (bear in mind this begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://mirrorbookmarks.com/story20634407/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c