Block top - The block selection and duration with the blockchain (in blocks) on development of the current block Nonce - The transaction variety for the from address (bear in mind this commences at 0 so a nonce of 100 would in fact be the one hundred and first transaction https://bookmarklinking.com/story8057064/getting-my-blockchain-explorer-ethereum-to-work-https-www-webwiki-ch-cryptoexplorerhub-com