Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://socialimarketing.com/story6280909/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-independent-academia-edu-drewandreassen4