Keep expression in the log, not in the form
2026-03-12 · Arithmetic captchas
Support staff can see 14+9. The portal field should receive 23.
When a user says the captcha failed, the expression tells you whether the engine saw the right sum. Text alone does not. Log both, plus raw and the task id.
The form post should contain only text. Putting 14+9 into a numeric field fails the portal even when the math was right.
Hindi sums work the same way. The expression is the Western-digit version of the word problem, and text is the result.
48 hours later the task record expires. If you might report, do it the same day. The daily report cap resets on the UTC day.
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