DCBR Engine · Published · Zenodo 10.5281/zenodo.19204972

The same reasoning pattern
appears in many places.

Research sessions end, files are archived, and the next person starts from zero. A claim that should have been contested gets into the final report because nobody tracked the conflicting source. Six months later, the same question is being answered again.

This is not a technology problem. It is a structural problem with how evidence-based work is done — in consulting, in policy, in investigations, in accountability work. The format changes; the problem doesn't.

Epistamate is one implementation of a more general engine. This page describes the engine.

See it work — interactive demo → Request early access

Removing any one degrades the system to
something existing tools already do.

01

Typed Claim Extraction

Claims are structured objects — text, status, computed confidence, credibility tier, citations, evidence type — not free-text summaries. Each claim is individually addressable: it can be verified, contested, weakened, or carried forward independently.

02

Multi-Factor Evidence Confidence

Confidence is computed from a deterministic formula — source tier, consensus across providers, adversarial challenge outcome, evidence recency — not LLM self-report. Range [5, 95]. LLM-reported confidence is recorded in audit metadata but never used in the score.

03

Adversarial Challenge as First-Class Stage

Mandatory Phase 3 runs before synthesis. Claims that don't survive lose their socratic bonus and are reassessed. Challenges are persisted as typed output — not discarded after scoring. The brief reflects what survived scrutiny, not what sounded best.

04

Gap Tracking as Typed Persistent Output

Knowledge gaps are first-class objects with importance ratings. They accumulate across sessions and narrow as evidence arrives. The reader knows where the brief stops being reliable — not as a disclaimer, but as a structured finding.

05

Cross-Session Compounding of Evidential State

VERIFIED claims from session N reduce re-verification burden in session N+1. The knowledge graph accumulates with use. Contradictions between sessions are preserved, not silently resolved. Session five builds on sessions one through four.

06

Bidirectional Operation

Synthesis direction (Question → Brief) and Verification direction (Document → Decision Record) share the same graph, formula, and adversarial mechanism. Ingest an authoritative report; its claims enter the same evidence quality system as retrieved sources.

+ Domain Configurability

Source trust hierarchy, claim type vocabulary, scoring weights, and output format are runtime parameters — not prompts or hardcoded logic. The same binary runs policy research, investment due diligence, and regulatory compliance with no architectural change.

The same five problems appear
in very different rooms.

None of these domains currently has a tool that does what the engine does. Each is doing the equivalent work manually — in spreadsheets, committee documents, and institutional reports that nobody reads systematically three years later.

Humanitarian response

Coordinating claims under pressure, across organisations

Dozens of UN agencies produce simultaneous situation reports on the same crisis. The claims conflict. Nobody tracks which ones are established. OCHA's Humanitarian Needs Overviews are evidence synthesis documents built under time pressure with no structured memory between crises.

Gap tracking and contradiction detection are precisely what's missing. The Decision Log is what makes accountability to funding bodies possible.
// UN OCHA · Humanitarian Data Exchange
Information integrity

Investigating disinformation with traceable evidence chains

A claim circulates in 40 sources. All 40 trace back to one original. That's amplification, not corroboration — but standard tools can't tell the difference. Fact-checking organisations and digital forensics labs do structured evidence work that needs to be itself defensible.

The confidence formula's diversity weighting catches the difference between genuine cross-source consensus and coordinated amplification.
// UNESCO · EU Code of Practice on Disinformation
Land rights & environment

Making contested evidence legible in high-stakes disputes

Government surveys, community testimonies, environmental studies, and corporate reports all exist in the same dispute. Contradictions between them are resolved by institutional power, not by evidence quality.

The engine provides a structured record of what is established, what is contested, and what gaps remain — making the epistemic state of a dispute legible to any party.
// UNEP · UN Special Rapporteur on Indigenous Rights
Treaty compliance

Accumulating verified findings across review cycles

Treaty bodies assess state compliance claims cycle after cycle. Previous findings sit in PDF reports. Each new cycle starts from near-zero institutional memory. States report; bodies assess. Currently this is manual evidence synthesis with no compounding knowledge.

The knowledge graph means treaty body five has a verified claim base to work from that treaty body one didn't. Contradictions become part of the structured record.
// UN Treaty Bodies · CTBTO · OPCW
Algorithmic accountability

Auditing AI systems with the rigour AI systems deserve

A company claims 95% accuracy. An independent study finds 60% on a specific demographic. Both claims exist in the public record. Neither is resolved — they just accumulate. Civil society and government auditors assessing AI harm need structured evidence work.

The contradiction detector and confidence scoring turn this from advocacy into a defensible record. Directly relevant to EU AI Act conformity assessment and NIST RMF.
// EU AI Act Art. 9–17 · NIST RMF · AlgorithmWatch
Regulated procurement

Justifying consequential decisions to auditors who weren't in the room

Government and defence procurement decisions are made over 18 months, across teams, based on claims that need to be traceable to source when the auditor arrives two years later. Capability, price, risk, compliance — each requires provenance, each is subject to challenge.

The Decision Log captures the full evidence state at the moment of decision. That's not a compliance feature — it's the output of how the engine works by default.
// EU Public Procurement Directive · UNCITRAL Model Law

Strategy & independent consulting

You already do this work. You just do it in documents that don't compound.

The best strategy research already works the way the engine works: individual claims are sourced and graded, contradictions between data points are noted, gaps in the evidence are named, and the final recommendation is honest about its confidence level. What it doesn't do is carry that structure forward to the next engagement, the next client, the next analyst who joins the team.

The structured brief a senior consultant produces for a board is a claim vault — it just doesn't look like one, and it evaporates when the project ends. The engine is what that process looks like when the institutional memory is preserved rather than PDF'd into an archive.

This is what responsible AI looks like in practice.

The EU AI Act, UNESCO's AI Ethics Recommendation, and a growing number of national frameworks share one underlying requirement: AI used in high-stakes contexts must be explainable and traceable — not just technically, but epistemically. The question is not only "what did the system output" but what evidence did it draw on, where did that evidence conflict, and what was uncertain when the decision was made.

Traceable by construction

Every claim carries its source tier, citations, and confidence derivation. Not a summary — a structured assertion with provenance.

Uncertainty is named

Weak and contested findings surface explicitly. The brief reflects what the evidence supports — not what sounds most authoritative.

Decision state is immutable

When a decision is logged, the full evidence state is preserved at that moment — verified, contested, gaps acknowledged. Article 12 record-keeping as a byproduct.

Human review improves scores

Marking a claim as evidence-grounded raises its confidence. The system reflects researcher judgment, not just model output.

One engine. Configurable domain vocabulary and output format.

The claim extraction, confidence scoring, contradiction detection, gap tracking, and decision logging are domain-agnostic. What changes between implementations is the source tier definitions, the claim type vocabulary, and the output artefact format.

Epistamate — research intelligence
Verideck — investment due diligence
+ configurable — any evidence-intensive domain

If the pattern fits a problem you're working on —

We're in active development and talking to organisations where defensible, compounding evidence matters. If you recognise your domain in this page, we'd like to hear about the specific problem before we describe the solution.

Start a conversation → See the demo first ← Back to Epistamate