Worked example
One decision, walked
One determination, traced from source material through observation, governing authority, conclusion, independent approval, and the record that survives. This page replays a completed accountable judgment; it does not simulate one thinking in real time.
Product-status claims defer to what runs today; this page is a worked example of the governing model, never a product demo.
The question
A post-close QC reperformance determination on a synthetic refinance file: does the income documentation in the file support the qualifying income the underwriter used?
One concrete operational question, the kind a QC analyst answers dozens of times a day, and the kind an examiner asks about months later.
synthetic refinance file WE-EXAMPLE-01
income documentation supports qualifying income?
The source material
The original evidence from which later observations derive.
"Pay period ending 2026-06-30 – gross pay this period: $4,100.00 – year-to-date gross: $24,600.00"
Anchor metadata uses only the granularity the system genuinely persists: document and page. No invented line numbers or coordinates.
paystub_2pp.pdf
p.1
What was observed
The fact derived from the source, held distinct from the source material itself.
- Observation 01
- base income $8,200/mo
An observation is a judgment input, not a machine log entry, even when a machine produced it.
base income $8,200/mo
Source 01 · p.1
What rule applied
The governing authority is distinguished from source evidence.
When policy changes later, this determination is still explainable under the rule that existed when it was made. A rule can retire; it cannot change.
Income-calculation rule pack
base-income averaging, 24mo
2026.07.14
What was concluded
The reasoning relationship, made legible: observed state tested against governing condition, yielding a conclusion.
Observed state
base income $8,200/mo, anchored to paystub p.1; application states $8,400/mo – both values retained, not overwritten
Governing condition
qualifying income must be supported by 24-month base-income averaging under the applicable rule version
Conclusion
qualifying income supported at $8,200/mo; $200/mo variance flagged as a finding, routed for human review
Uncertainty is a first-class state in the record, not a silent override. A conclusion never overwrites the observation beneath it.
supported at $8,200/mo · $200/mo variance flagged
Who approved it
A conclusion is not yet authority.
- Maker
worker_13– produced the judgment- Checker
reviewer_04– independently resolved the judgment
The literal invariant maker ≠ checker: the same identity cannot both make and approve. That is a schema property the database enforces, not a policy anyone follows.
worker_13
reviewer_04
$200/mo variance accepted – upheld at $8,200/mo
What survives
The same accumulated record the trace above built becomes the final sealed judgment record. No second, prettier summary object replaces it.
Sealed judgment record
sealedQualifying income supported at $8,200/mo
Income-calculation rule pack
2026.07.14
paystub_2pp.pdf
p.1
base income $8,200/mo
worker_13
reviewer_04
$0.0184
81fc…
append-only — prior entry carried forwardThe result is not the record; the durable accountable relationships are the record. Months later, reconstructing this decision does not require reopening and re-reading the file – the evidence pack is the answer, built for the asker to recompute, not to take on trust. Persisted source, authority, and approval fields stay traceable to their origins after sealing.
Next step
Inspect the architecture
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