Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to 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://mixbookmark.com/story6074749/getting-my-blockchain-explorer-ethereum-to-work-https-pad-fs-lmu-de-h2fzbno0rjqfpyic-69lxg