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 really be the 101st transaction submitted by this account) https://natural-bookmark.com/story20764982/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-clancy-olesen-4-mdwrite-net-opening-the-record-your-resource-to-blockchain-investigation