Concordance 2.0

A deterministic verification engine. It checks what is true and hands you a receipt you can re-verify — a verdict, the worked reasoning, and a permanent content-addressed seal. It eliminates what is not the answer so that what survives stands on its own.

Rebuilt like a watch (the watchmaker's discipline): one bounded, counted movement; serviceable by any competent hand; machine-honest — the accuracy is the finish. See docs/V2_DEFINITION.md. New here? Start with docs/ARCHITECTURE.md — the newcomer's map (every count dated and derived from the code).

The floor — seven primitives

Every answer is a (verdict, trail, seal) — three things, each independently checkable.

1. Claim — a structured assertion {domain, spec} (or text the router resolves)
2. Verifier — a pure deterministic function spec → verdict + worked trail (no I/O, no LLM)
3. Verdict — PASS | REJECT | QUARANTINE + the worked math (the elimination trail)
4. Seal — content-addressed (SHA-256) record of {claim, verdict, trail}
5. Ledger — append-only hash chain of seals
6. Ranker — IDF/full-text retrieval over the keeping
7. Surface — the face over the shared foundation (secular reach / witness)

The measure: reproducibility, zero false-positives on the published benchmark (docs/BENCHMARK.md), re-checkability.

One foundation, two surfaces

The foundation is the Bible (FOUNDATION.md) — Christ at the center. From it the engine reaches the world two ways: a secular .com (the reach) and an explicit-witness .org. One engine, one foundation, selected by config — never a fork.

from concordance import EngineConfig
EngineConfig("secular").identity   # the reach — no religious wording
EngineConfig("witness").identity   # the witness — the foundation named

Run it

PYTHONPATH=src python -m concordance serve          # the .com reach (secular) — API + site, same-origin
PYTHONPATH=src python -m concordance serve --surface witness   # the .org witness face

Then open http://127.0.0.1:8000/ — bring a claim, get a receipt. (Data — the keeping, the WEB Bible, Strong's — is generated by tools/migrate_*.py and gitignored; the engine runs without it, just with less to retrieve.)

The surfaces — reached by asking, not by menus

• The Console (/) — speak or type anything; the keeping answers, shown as a calm trail (door → verifier → seal → source), read as a page or heard aloud in the operator's own cloned voice. Crisis-first, store-nothing.
• The parable (/parable.html, and the WALK door) — bring a situation; receive the one of Christ's parables whose shape fits it — the story verbatim, with his own explanation where he gave one, and one next step. Found and cited, never generated; honest silence where no single parable fits.
• The Reading Room (/books.html) — a free library: read our books in full, or open your own .epub, which is read entirely in your browser and never uploaded (store-nothing).

For agents — the MCP (the church for agents)

The engine is also an MCP server (python -m concordance mcp). Five doors, every answer found/verified/cited/sealed, never generated:

• CHECK — verify · audit · seal_fetch · find_verifier: a claim in; the verdict, the worked trail, the seal.
• FIND — search · card_get · lookup · define: one map, one lookup, the source itself.
• WALK — ask · discern · parable · coach_next: a situation in, one next step out — the path, the fitting parable, the figures' words.
• KEEP — identity_create · study_create · decks: a sovereign key born on your device; your deck, your receipts.
• WORD — read_passage · word_study · cross_references: Scripture at depth.

Status

The 2.0 engine is built end to end and live (narrowhighway.com/.org/.tv) — floor 7/7, the derivation moat (0 false-positives), the tamper-evident ledger + precedent overlay, 93 verifier modules across 77 routable domains, the witness overlay (theology / witness / scripture / canon), the shared corpus

• ranker (880k+ cards), scripture ref-resolution + original-language word study, the axes grid, the Console + the parable register + the Reading Room, an MCP server (100+ tools), a sovereign HTTP API, and the site. 400 test files; the deploy gate (benchmarks, live assay, front door, recall) runs on every push with zero false positives and reverts on any regression. The domain router is model-free and measured (orthogonalized basis; routing cross-talk and invariance tracked by tools/dispatch_probe.py and tools/hodge_probe.py). A gated collective-intelligence layer (stigmergy, quorum, flock, eldership, physiology, inhibition) and an alignment gate (the keeping tiered by agreement — occult explicit-only, other religions/philosophy referenceable) run over it; see docs/WORLD.md. Sovereign, stdlib-first; heavy deps (sympy/scipy/numpy) are optional, lazy-loaded.

1.0 is frozen (v1.0-frozen in the Lighthouse repo) — the shape that taught us the floor.