Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://moodjhomedia.com/story3283382/the-definitive-guide-to-explorer-blockchain-ethereum-https-mlx-su-paste-view-d02eef60