Block top - The block number and length in the blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (Keep in mind this commences at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this https://wise-social.com/story6129760/blockchain-explorer-fundamentals-explained-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q