Nostradamus

Can you guess the next block's values? If you think you can, prove it by having your address return true, as a prophet, here.

We have deployed a smart contract that will record your address and publish your bragging rights, if you solve its puzzle, that is.
When you have solved the puzzle, and have a bragging transaction to prove it, go and submit its hash in our form.

To record your bragging rights:

  • Submit the transaction hash of the transaction that deployed your "prophet" contract. Your "prophet" contract's address should return true when querying Nostradamus with it.
  • Add a unique identifier so you can splash your prowess across the internet.
We will order all valid transactions according to the Ropsten blockchain.

Submit

If this challenge wasn’t for you, have a look at our free introduction to Ethereum. Then become a certified Ethereum developer!

If you found this one easy, how about becoming a Certified QA engineer? Or look at some of our other protocols and become a multi-stack developer with B9lab ONE.