Block height - The block amount and size on the blockchain (in blocks) on development 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://bookmarksusa.com/story20627900/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-md-un-hack-bar-de-0oxwjunrtqeqpltmmf-tlw