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 starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://indexedbookmarks.com/story20586367/blockchain-explorer-fundamentals-explained-https-www-anibookmark-com-user-shoeraven4-html