Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety to the from address (bear in mind this begins at 0 so a nonce of one hundred would in fact be the one hundred and first https://sparxsocial.com/story10844270/explorer-blockchain-base-an-overview-https-www-webwiki-co-uk-cryptoexplorerhub-com