Are the sneakers authenticated? August 27, 2024 19:54 Updated Yes, all sneakers sold on Tradeblock go through a rigorous authentication process to ensure they are 100% authentic. Related articles How is authentication handled? How do you authenticate “used” shoes? Do I get a refund if my shoes pass the authentication process but the other collectors’ don’t? What happens if my shoes fail the authentication process? How does bidding work on Tradeblock?