Nineteen thousand two hundred and seventy-four rows of market record.
Every one of them checked itself against ten rules and passed.
One of them is wrong. Nothing inside the record can tell you which.
click any mark to run the checks on it.
the ten rules each row passes on its own
high ≥ open, close
low ≤ open, close
high ≥ low
no null in any sealed column
date is a real session
no duplicate date per timeframe
volume ≥ 0
weekly rolls up from its own days
monthly rolls up from its own weeks
row count matches the manifest
marks inspected from inside: 0
Every gate held. The row was internally consistent — it agreed with itself
perfectly, which is exactly why nothing on this page could find it.
It took a second witness, pointed at the same day from somewhere else, disagreeing by
two dollars and eighteen cents.
A check you run on yourself can only ever find the errors you already know how to make.