We built a small tool to prove we work the way we say we do.
Touchstone plays trading rules against a year of real gold prices — pretend money, no accounts, nothing bought or sold. It is free, and it collects nothing about you.
Four numbers
01Four things it does that most tools do not
02It never guesses
Prices come from two separate places. If the two do not match, it refuses the price and says so, out loud.
Nothing can be changed afterwards
Once a result is written down it stays written. Nothing is deleted — not even the runs that went badly.
It replays the year six times
Same year of prices, shuffled into six different orders. The ending is the same — the road is different every time.
It marks its own homework
We test our own predictions against what actually happened, and publish the score — good or bad.
Built like an experiment
A question, a method, and the result published either way. The same habit we bring to engineering, pointed at something that is not engineering.
Time-stamped on Bitcoin
Every record gets a public time-stamp on the Bitcoin network. Nobody — including us — can quietly change or back-date a result, and anyone can check.
Honest about what is built
Some ideas are running, some are still on the drawing board — and the site says plainly which is which.
And it says what it cannot claim
Touchstone has a page called what we do not claim yet: the record is only weeks old, it covers one market, some tests are not built yet. Nobody made us put that page up. Saying what is unfinished, before anyone asks, is how we work.
Touchstone is not something we sell. It is the clearest proof we have of how we build things. If you want to know whether we really work the way we say — open it and see.
Free. Paper trading. Opens in a browser. Practice only — an educational simulator using imaginary money. Not investment advice, no real orders, and past results, real or simulated, do not tell you what happens next.