Quantum amplitude amplification of improbable futures: data and code

Two archives. The data archive holds every input from which the numbers, tables and figures of the paper “Quantum amplitude amplification of improbable futures” are computed: simulation results, the raw measurement counts of every hardware circuit, IBM’s own records of the submitted circuits and results (jobs dbhgjlht9uhs73ca7e9g and dbhgk2hq260s73bv9100 of 29 October 2026 and the twelve jobs of batch 7855afd6-8494-4677-b80a-698b9c7fc19c of 30 October 2026), the calibration data in force when each job ran, the pre-registration record of the noise-suppression run, the enumerated rare sets, the verification outputs and the source data for each figure panel. All hardware jobs ran on IBM Kingston (ibm_kingston, IBM Heron r2); IBM account identifiers have been replaced by “[removed]”. The code archive holds the Qiskit pipeline that builds, verifies and costs the circuits, the hardware submission, monitoring and analysis scripts, the independent verification scripts, and the scripts that generate every number, table and figure in the paper from the data archive (Python 3.12 or later with Qiskit, Qiskit Aer, Qiskit IBM Runtime, NumPy, SciPy and Matplotlib; the hardware-submitting commands do nothing unless given both --live and --confirm-qpu, and no credentials are included). The README in each archive describes every file, and the code README gives the commands that reproduce the manuscript. A preprint of the paper is posted on arXiv under the earlier title “Quantum amplification of improbable futures”. Version 1.1.0 adds the control-seed sensitivity study: its pre-analysis specification, the per-seed results and the scripts that produced them.