📒100 trades journaled

What Tradoshi checked

This behaviour was measured by Tradoshi on the trader's journal, fed by their broker connection and recorded from their app. The maths is redone by our servers on that journal, not claimed by their browser.

Anchored on a public chain

View the transaction on basescan.org ↗

The transaction's input data field, on the explorer, is exactly this fingerprint. You can compare them by eye, without knowing what a hash is.

What anchoring proves, and what it does notIt proves this fingerprint existed at the transaction date, so Tradoshi cannot have backdated or manufactured it after the fact. That is all, and without it you would have to take our word for it, since we hold the database. It says nothing about the quality of what went in: for that, see the provenance above.

Check it yourself

The check does not depend on us. Here is the exact string that was hashed, and how to redo the calculation.

What this is forThe fingerprint is a digest of the source string: change a single character of that string — the measurement, the date, the provenance — and the fingerprint comes out completely different. If recomputing gives the same fingerprint, then the record shown on this page is exactly the one signed on the day it was issued, and that is the fingerprint the on-chain transaction dates. It says nothing about how honest the original data was: for that, see the provenance above.

Source string (preimage)

SHA-256 fingerprint

Or elsewhere, without us

How the source string is builtSeven fields joined by “|” (U+007C), no spaces around it, in UTF-8: the version tag, the proof ID, the badge ID, the trader's pseudonym, the value followed by its internal unit, the date earned in UTC (YYYY-MM-DD), then the data origin. The pseudonym is a salted SHA-256 of the account ID: no email and no broker account number ever leaves our servers.

What it does not say

Nothing about money. No Tradoshi proof covers profits, capital or returns: every one of them covers how the person works. A disciplined trader can still lose money, and that is exactly why this page exists.