South Carolina — capability brief.
Planisphere serves South Carolina's public-sector AI procurement under the federal floor and South Carolina-specific holds. The same evidence record maps both layers for review.
Scope.
In scope. South Carolina · palmetto. Cite-anchor: South Carolina (state register).
Out of scope. Production data (no PHI, no PII, no student record, no privileged correspondence). Model weights. Customer's own analyses of the evidence record.
Boundary. Only sha-pinned, Merkle-rooted derived metadata crosses; model state never does. U.S. provisional patent No. 64/073,668 covers the property.
Evidence.
Every measurement against South Carolina (state register) lands in a signed evidence record: each artifact carries its own SHA-256, the artifacts chain into a Merkle root, and the engine version is pinned alongside. Internal or external compliance recomputes the root and checks the record — without the model state ever crossing the boundary.
Limitations.
Planisphere measures behaviour, not capability. The evidence record says this is what your fleet did against the probe set; it does not say this is what your fleet will do under adversarial pressure. Adversarial coverage is a scope expansion that adds a probe family; the engine and the record shape do not change.
Reproducibility requires the inputs to be preserved. The record pins the inputs by SHA; it does not host them.
Reproducibility & compliance check.
Open the evidence check. Drop ATTESTATION.json and the named artifacts. The browser recomputes each per-artifact SHA-256 and the chained Merkle root via Web Crypto. Files do not leave the tab.
For a synthetic 3-subject record, see how a record is checked: one click checks an intact record; one click checks a tampered record and names the failing file.
Cite.
Planisphere Corp., South Carolina — capability brief, v0.1, https://www.planisphere.ooo/corpus/south-carolina/brief. Methodology preprint: 10.5281/zenodo.20372606.