Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://businessbookmark.com/story5737802/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-independent-academia-edu-drewandreassen4