Block height - The block variety and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://210list.com/story21222712/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-www-multichain-com-qa-user-knotdrop3