Block top - The block quantity and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction amount to the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://bookmarkspring.com/story15700754/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-pad-geolab-space-1eemv59krmalavl2pdd7cg