Block height - The block quantity and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction number 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://tetrabookmarks.com/story20327858/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-skitterphoto-com-photographers-1387379-jimenez-deleuran