Data Availability Statement

The inputs, intermediate data, and outputs behind the breeder numbers are deposited or pointed to, and their provenance is stated; nothing load-bearing is withheld.

Where the data lives

A validation record must say where its data comes from and where a reader can get it. For the breeder (Hyperion), the frozen inputs, the analysis outputs, and the checksums that bind them are deposited on Zenodo with the manuscript. External reference data — such as the empirical scalings used for benchmarking — is cited to its original source.

• Design inputs and frozen parameters: in the deposit.
• Analysis outputs and figures: in the deposit, with checksums.
• Empirical scalings (IPB98(y,2), Troyon, Greenwald): cited to the literature.
• Spherical-tokamak comparison data: cited to the originating experiments.

Provenance over convenience

Every quantity is traceable to either a frozen input in the deposit or a cited external source. Where a value is assumed rather than derived, it is labeled as an assumption. This lets a reviewer separate what the breeder analysis computed from what it took on faith from prior work.

What the data is not

The data is simulation input and output, not measurement from a breeder machine — none exists yet. The statement is careful to describe every dataset as design-and-simulation data. Hardware data will enter the record only after FOAK, and will be deposited under the same terms.

This page describes a design-and-simulation study, not a built machine. Construction of the breeder (Hyperion) begins Q2 2027; first-of-a-kind first tritium is targeted near 2030. No hardware net-gain claim is made before FOAK.