We think trading claims should carry their evidence.

Almost every strategy you will ever be shown is a claim without a chain of custody. The equity curve is real, but the data behind it may have included numbers nobody could have known at the time. The parameters may have been chosen after seeing the answer. The screenshot may be the best of forty. The live results may have come from an account that traded something slightly different.

None of that requires anyone to lie. It is what happens by default, because the tools make the honest version harder than the dishonest one. Point-in-time data is expensive and awkward. Out-of-sample discipline costs you your best-looking backtest. Publishing losses costs you customers. Every incentive points one way.

Tradevo builds the other way. Each of our products closes one specific place where a trading claim breaks, and each is designed so that the honest version is the easy one — an API where you cannot write lookahead bias by accident, a report you cannot quietly re-run after seeing the outcome, a public record that includes the losses because it was never possible to exclude them.