How to prove your stock-picking track record

• A timestamp from before the outcome. The call has to exist before the price moved, and the time can't come from you.
• A price you didn't pick. The entry price is the market price at that moment, not the low of the day.
• Every call, not a selection. Ten public wins mean nothing if forty quiet losses sit somewhere else. The record has to include everything, and nothing can be deleted.
• The reasoning. A call that worked for the reason given is skill; one that worked for another reason is luck. Without the reasoning you can't tell them apart.
• A benchmark. A 20% gain in a year the market rose 25% is a worse result than doing nothing.

Broker statements prove trades but not reasoning, and most people won't share them. Social media posts have timestamps, but they can be deleted, and nobody counts the ones that were. Spreadsheets can be edited by whoever owns them.

This is also why public filings from funds and members of Congress interest so many people: they are records the filer can't take back.

On SoFo, you post a call with your reasoning and what would make you wrong. SoFo records the market price and the time, and after 10 minutes the call is final: it can't be edited or deleted, only updated or closed. Each event is also sealed with OpenTimestamps, which anchors it to the Bitcoin blockchain, so even SoFo can't backdate it.

Your profile then shows every call, open and closed, with its return. Anyone can check it, and you can link to it from anywhere.