Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity to the from address (Keep in mind this starts at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://socialexpresions.com/story6164665/explorer-blockchain-base-an-overview-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua