Block height - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://allbookmarking.com/story20332566/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-www-instapaper-com-p-16864836