Space-time correction for IPRS validity schema

This might seem a joke now but as project is called Inter-Planetary I think we should correct for light propagation times. In case of Mars the delay would be ~20mins but we don't know how humanity might evolve so it is better to be prepared for it.

Correcting for space would be quite simple, you need to know your position in space and position in space of record origin, calculate distance between them and divide buy speed of light. This gives additional time the record should be valid.

Light cones, blue area is space-time in which record is known and valid: