Required inputs
UTC instant or interval
Observer coordinates
House-system identifier
Polar-latitude policy
Ordered execution
Work the protocol
- 1
Validate time and location provenance.
- 2
Compute ascendant and midheaven under the shared frame.
- 3
Check the requested system at the observer latitude.
- 4
Sweep uncertain time across all cusps.
- 5
Withhold houses when cusps or system validity fail.
Outputs
- House-system eligibility
- Cusp stability table
- Withheld-output reasons
Done only when
- The system is named.
- Every cusp is stable or withheld.
- Observer dependence is explicit.
Fail closed
Refusal conditions
- Unknown time is replaced by noon.
- A polar limitation is ignored.
- Different systems are blended into one house number.