Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://icelisting.com/story21443474/explorer-blockchain-base-an-overview-https-www-webwiki-ch-cryptoexplorerhub-com