If you trust a lawyer (I’d trust a lawyer with a contract far more than I’d trust family with a million dollar ticket,) you can create an llc and have them claim it on your behalf. The name of the llc is what then gets published.
You can then distribute the winnings out of that LLC into one or more that then holds the cash or, holds the big assets (like a house).
This is particularly useful for inheritances and such like. Because the contents of that llc are secret to only the people managing it in trust and the owner, there’s less ability to fight over it.