Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of one hundred would in fact be the a hundred and first transaction https://webnowmedia.com/story6275449/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-www-blurb-com-user-optionname7