Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://bookmarkoffire.com/story20325463/not-known-facts-about-blockchain-explorer-usdt-https-www-webwiki-de-cryptoexplorerhub-com