Block height - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkspedia.com/story6139803/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-www-dermandar-com-user-quietquiet9