Block top - The block number and size on the blockchain (in blocks) on generation of the current block Nonce - The transaction variety with the from address (bear in mind this begins at 0 so a nonce of one hundred would really be the a hundred and first transaction https://tripsbookmarks.com/story20582354/explorer-blockchain-base-an-overview-https-lamm-tolstrup-3-blogbright-net-investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world