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://bookmarkshut.com/story21715777/the-definitive-guide-to-explorer-blockchain-ethereum-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua