Block top - The block number and length from the blockchain (in blocks) on creation of the present 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://artybookmarks.com/story20398448/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-files-fm-f-e6nkandt95