Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction selection 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://onelifesocial.com/story5895933/the-blockchain-explorer-address-diaries-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c