What are sealed artifacts?

Sealed artifacts are the preserved machine-readable files that make an SDX run auditable.

They may include source snapshots, method outputs, manifests, tables, appendices, configuration files, verification records, and other run-level materials. Once sealed, these artifacts are not rewritten to improve the presentation of a report or to make the outcome more convenient.

Sealed artifacts allow SDX to separate completeness from readability. A report data package does not need to copy every raw value or every table into the decision-facing layer. Instead, it can reference sealed artifacts by controlled paths, hashes, and appendix structures while keeping the full evidence base available for audit.

This is especially important for large domains. A wildfire analysis may contain hundreds of zones or spatial units. SDX can surface aggregate decision material while preserving the full underlying artifact set in sealed, machine-readable form.