Show HN: CryptoFinalFour – Tradable March Madness brackets as ERC-721 tokens

This is actually really interesting when you&#x27;re dealing with large pools.<p>Last year, I was in a pool with 10,000+ people and serious $ were on the line and I actively negotiated with other brackets to buy them, split ownership, etc.<p>A few questions&#x2F;comments: - Would you also be able to sell a % of the bracket rather than just all of it? - Would you also build out tools to predict the current odds of the entries?

I know next to nothing about this domain (sports...), but I guess you need to have the outcome of the matches to make this work? How is that information entered onto the blockchain? I guess there is a trusted party somewhere that acts like an oracle?

Cool idea. Now I need to figure out what Cipher Browser is.

What is the oracle for telling the blockchain which team won? Do we just trust the person who wrote this contract?

This is an interesting experiment. I have been interested in building a derivative of sorts using tokens but never got around to learning ERC-721 token. Any good tutorials out there?

How do you get the actual results into the Blockchain? And how can we trust that part?

Link to the smart contract?

Is there an interface for trading these?

is this a sports sweepstakes but with cryptocurrency? is the contract itself implemented in Ethereum?

IS this legal?

Not crypto related.<p>HN is a technical forum. Maybe &#x27;March Madness on Ethereum&#x27; might be a better title &#x2F; name.