Sovrient
Name note: Sovrient is independent from and unaffiliated with Sovrin, the Sovrin Foundation, or the Sovrin Network.

Theorem Reference

ACL2 + Isabelle/HOL Theorem Twins

Sovrient now has a certified ACL2 theorem family with three current books: the abstract frame, a minimal concrete starter, and the first real ZF gate lane. This page publishes a public-safe reference surface over that family so the formal layer becomes externally legible without relocating authority away from ACL2.

Sovrient also now has a repo-internal, build-verified Isabelle/HOL lane covering session scope, participant authority, and opportunity-brief safety invariants, plus a live Isabelle/HOL pi minimal-period route. That extends prover coverage without collapsing the boundary between repo-internal and public routes.

This is a reference surface, not a replacement for certification. The current public claim is that Sovrient has certified ACL2 books, a live Isabelle/HOL pi theorem-twin route, and a bounded public reference surface for them, plus a second prover family that exists repo-internally. It is not a claim that every lane is formally covered or that JSON is the authority layer.

The JSON companion and live raw theorem-twin routes are now exported from the certified family and declared live-twin registry rather than maintained as isolated hand edits.

Status: Public Reference Surface Authority: ACL2 Artifacts Prover Families: 2 Certified Books: 3 Internal Isabelle Theories: 3 Exported Theorems: 35 Live Twins: 3

One-Line Split

Formal Artifacts

The authoritative objects are the ACL2 source books, certification artifacts, declared hashes, prover identity, and replay procedure.

Theorem Twins

Theorem twins are descriptive semantic envelopes. They make the formal layer easier for agents and reviewers to navigate without pretending the JSON layer is the proof kernel.

Transport Note

Live theorem-twin routes may also serve application/cbor companion encodings for agent and constrained-link transport. These CBOR artifacts are descriptive transport companions only: they are not CBOR-LD, they do not replace the JSON-LD twin routes, and they do not move authority away from the prover-specific formal artifacts.

Current Claim Boundary

Current Certified Family

Frame

Book: scf_dtau_001_frame

Role: abstract admission, governance, replay, and durability structure.

Exported theorems: 12

Load marker: :frame-loaded

Live twin: jsonld · sha256

Alternate encoding: cbor · sha256 · manifest

Core1

Book: scf_dtau_001_core1

Role: minimal concrete singleton witness over p-core.

Exported theorems: 7

Load marker: :core1-loaded

ZF Gate Lane

Book: scf_dtau_001_zf_gate_core

Role: first real authoritative singleton path for the release-eligibility latch.

Exported theorems: 16

Load marker: :zf1-loaded

Live twin: jsonld · sha256

Alternate encoding: cbor · sha256 · manifest

Additional Prover Family

Isabelle/HOL

Status: repo-internal, build-verified

Current theories: session_scope, participant_authority, opportunity_brief_safety

Current role: session-envelope, participant-boundary, and briefing-safety invariants.

Public route status: repo-internal only; the live pi theorem-twin route is tracked below.

Live Isabelle/HOL Pi Route

Pi Minimal Period

Framework: SOVRIENT_ISABELLE_PI_001

Role: canonical surfaced result

Status: build-verified, live public route

Theorem: minimal_shared_period_2pi_trig_complexexp

Live twin: jsonld · sha256

Alternate encoding: cbor · sha256 · manifest

Encoding note: application/cbor companion only; not CBOR-LD and not a replacement for the JSON-LD twin route.

Authority Chain

Why This Matters

ANATOP Fit

The theorem layer now follows the same authority-versus-twin pattern used elsewhere on the site: authoritative artifact, semantic twin, declared scope, and fail-closed regeneration when hashes drift.

SSEJ Fit

The formal layer now has a path to support the Justified component of SSEJ with machine-checkable theorem ids rather than only prose citations, while still keeping authority with ACL2.

What This Public Surface Proves

What It Does Not Prove

Current Public Handles

Related Public Surfaces

For procurement and teaming context, see Capabilities.