It was a great pleasure to present this demo at APS 2026 alongside 2025 Nobel Laureate in Physics John Martinis, CTO of Qolab, and my good friend Paul Buttles from Qolab. A pure qubit state lives on the Bloch sphere—a unit sphere whose poles are |0〉and |1〉and whose equator holds the superposition states. This document builds the complete computational machinery for rotating the Bloch vector from the north pole to any target point, then measuring that state through the dispersive readout chain that a real cQED experiment uses. Every formula is immediately verified with TransmonLab code: if we cannot compute it, we cannot claim to understand it.