What Is the Trust Stack?
The Trust Stack names the credibility problem most organizations feel but cannot diagnose.
The Trust Stack is All Things Trust’s diagnostic system for evaluating whether digital and AI-mediated experiences provide enough clear, usable, and verifiable credibility signals for people and AI systems to understand, trust, and act. It is built around five dimensions: Provenance, Resonance, Coherence, Transparency, and Verification, which organize the signals and attributes that shape decision confidence. [3][4][12][13]
The Trust Stack does not try to measure trust as a general feeling. It examines the conditions that make trust more or less justified inside an experience.
Leaders see hesitation, drop-off, misrepresentation, support friction, and AI uncertainty. Those issues often get treated as separate problems. The Trust Stack gives teams a structured way to see where credibility is holding, where it weakens, and what needs to change.
What the Trust Stack evaluates
The Trust Stack evaluates the experience layer: what people and AI systems can see, interpret, verify, and act on across public-facing content, communications, interfaces, and decision points. It does not replace security, identity, legal, or compliance review. It answers a different question: does the experience itself make credibility visible, usable, and verifiable at the moments where people and AI systems form confidence?
How the system is structured
The Trust Stack is organized in layers. The five dimensions identify the major areas where credibility is built or weakened. Within each dimension, the system looks for observable signals, such as source information, evidence links, disclosures, support paths, review patterns, expert references, or consistency across touchpoints.
Those signals are then assessed through attributes such as clarity, proximity, specificity, consistency, accessibility, and whether they can be inspected or verified. The goal is not to reduce trust to one simple score. It is to show which parts of the experience are supporting confidence, which parts are weakening it, and what should be fixed first.
The five dimensions
The five dimensions look at source, context, consistency, transparency, and evidence. They are related, but not interchangeable. An experience can be coherent but unverifiable. It can be transparent but poorly aligned to user context. It can look authoritative while failing to show what supports its claims.
What the Trust Stack is not
The Trust Stack is not a general brand sentiment score, a security audit, a legal compliance review, a fact-checking system, a media rating, or a reputation monitor. It is a diagnostic system for evaluating experience-level credibility.
The Trust Stack does not determine whether every claim is right or wrong. It evaluates how credibility is presented: who or what is behind the information, whether it fits the user’s context, whether the story holds together, whether limits and incentives are clear, and whether evidence or verification paths are available.
A low score or weak finding does not mean an organization cannot be trusted. It means the experience may not currently make trust explicit, legible, or verifiable enough at the moments where people and AI systems form confidence.
Why this matters now
AI systems now retrieve, summarize, compare, and recommend information before people reach the original source. At the same time, people are encountering more polished claims, automated answers, synthetic content, and credibility signals that may or may not be supported. Credibility now has to work for two audiences at once: people interpreting meaning and machines processing structure.
All Things Trust applies the Trust Stack primarily with organizations, but the underlying need is broader: people also need clearer ways to evaluate whether digital and AI-mediated experiences provide enough source clarity, context, consistency, transparency, and evidence to justify confidence.
Sample Trust Stack snapshot
A simplified snapshot can show the shape of a credibility issue without exposing the full scoring method.
Applying the Trust Stack to show where credibility is visible and where it weakens
All Things Trust applies the Trust Stack to public-facing and AI-mediated experiences to show where credibility is visible, where it weakens, and which teams need to act. The system turns broad trust concerns into findings, priority issues, and practical recommendations for improving content, claims, AI outputs, support paths, evidence placement, and decision points.
Common questions about the Trust Stack
- [3] Liao & Sundar, Designing for Responsible Trust in AI Systems, 2022
- [4] Lee & See, Trust in Automation, 2004
- [12] Srba et al., Automatic Credibility Assessment Using Textual Credibility Signals in the Era of LLMs, 2026
- [13] C2PA