Block peak - The block selection and duration of the blockchain (in blocks) on development of the current block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://eternalbookmarks.com/story20130174/5-essential-elements-for-blockchain-explorer-ethereum-https-www-mixcloud-com-brokerfridge5