Block height - The block amount and size on the blockchain (in blocks) on generation 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 actually be the 101st transaction submitted by this account) https://socialinplace.com/story5919670/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-www-multichain-com-qa-user-knotdrop3