Exact uncertainty atlas / Research instrument 03
What survives when the target moves?
Move any one reading continuously and let the chosen target range independently. See every outcome that can occur, with rational witnesses and an independently checkable certificate.
01 / Assumptions
Define the rectangle
Exactly one reading changes at a time; all other readings stay fixed. The target is any real value in the interval you specify. Both intervals include their endpoints.
Inputs are processed on this device. Nothing is added to a URL or sent to an application server. A downloaded certificate contains your readings and target range; share it only if those values may be disclosed.
02 / Exhaustive result
One reading at a time
Exact routes will appear here.
03 / Verify independently
Take the argument with you
Each route lists all exact median transitions and factor roots at the target endpoints. The proof checks every open interval between them and every knot. The region atlas paints complete Mean and Median areas with exact tie lines, while the chart places coordinates approximately. Its text rules and independently checked JSON are exact. Colored area is not a probability.
Check a downloaded record on your device with the browser inspector, or run python3 tools/verify_odd_target_box.py certificate.json. See the proof and format, worked example, and portable verified horizon report.
A target interval is an assumption, not a measured truth or a probability distribution. A guaranteed route refers only to this exact one-reading model; it does not rank estimators generally or validate physical data.