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://socialrator.com/story11931654/explorer-blockchain-things-to-know-before-you-buy-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers