Type: Node / Epistemic Material
Working Definition: Evidence is information offered in relation to a claim under conditions that allow its provenance, authentication, corroboration, review history, relevance, and direction of support to be assessed. These properties form a profile; none is a truth score, and no single rank determines what the evidence establishes or what an institution should do with it.
Function in the Grammar: Evidence makes the relation between information and a claim available for accountable judgment. Claims are asserted; evidence is offered in their support or against them. Its wrapper records how the information was obtained, produced, preserved, authenticated, corroborated, and reviewed, together with its limitations and claimed relevance. That wrapper makes assessment possible, but it does not establish truth, reliability, relevance, or institutional acceptance by itself. Information with incomplete provenance may still bear on a claim, but its limitations must remain visible and its evidential significance may be indeterminate.
This is the core insight: evidence is not defined by content alone but by the relation in which information is offered and the epistemic and procedural profile that accompanies it. The same document may be authenticated but irrelevant, relevant but unauthenticated, corroborated but derived from a shared source, or reviewed while its warrant remains challenged. Those differences must remain separately visible.
Formal Grammar Representation
Evidence(e, claim: c, institution: I) iff
e is information offered in support of or against Claim(c) within Institution(I)
e has EvidenceProfile:
producer
provenance_completeness
authentication
corroboration
review_stage
relevance_to_claim
support_direction in {supports, undermines, neutral, disputed}
e is offered in a Context that allows those properties and limitations to be assessed
e does not presuppose its own conclusion
Semantic Constraints
The formal expression Evidence(e, c, I) is well-formed when information is offered in relation to a specific claim and its available profile and limitations are disclosed. Profile completeness, admissibility, adequacy under a standard, and institutional disposition are separate judgments. An institution may exclude relevant information for a procedural reason, admit information without finding it persuasive, or accept a claim whose evidence remains challenged. None of those acts retroactively changes the evidence's producer, provenance, authentication, corroboration, review history, relevance, or support direction.
Formal Pattern
Evidence(e, offered_for: Claim(c), institution: I, profile: P)
OFFERS(Agent(a), Evidence(e), for: Claim(c))
CONTESTS(Agent(b), Evidence(e), grounds: g) -- b challenges one or more profile properties or the inference
ASSESSES(Institution(I), Evidence(e), under: Standard(s))
ADMITS(Institution(I), Evidence(e)) -- I treats e as eligible for consideration
EXCLUDES(Institution(I), Evidence(e)) -- I rules e ineligible (provenance failure, irrelevance)
JUDGES(Institution(I), Claim(c), using: EvidenceSet(E), under: Standard(s))
-- judgment may inform a separate scoped acceptance or rejection act
Core Relations
| Relation | Notes |
|---|---|
| Claim evidences | Evidence is always offered for or against a claim. Without a claim it is offered in relation to, information is background, not evidence. |
| Provenance describes | Provenance records origin, custody, and transformation. Incomplete provenance limits assessment but does not by itself determine truth, relevance, or support. |
| Institution admits | The institution determines eligibility for its purposes under stated rules. Admission and exclusion do not settle the underlying claim. |
| Profile differentiates | Producer, provenance completeness, authentication, corroboration, review stage, relevance, and support direction remain independently inspectable. |
| Interpretation operates on | Evidence is the material that interpretation works on. An interpretation is an act of making meaning from evidence; the evidence provides the constraint. |
| Receipt is | A receipt is a governance-grade record of a governed act. It may provide highly structured evidence that the act was recorded as occurring, while separate assessment still governs authenticity, scope, validity, and what further claims it supports. |
| Standing governs | Who has standing to offer evidence, and in what institutional context, determines whether the evidence enters the institution's consideration at all. |
| Recognition confers standing | Recognition may give a claim institutional standing within scope. It does not convert evidence into truth or improve the evidence's epistemic profile. |
Typical Questions
- What is the provenance of this evidence — how was it obtained, by whom, under what conditions?
- What does each field of its evidence profile establish, and what remains unknown?
- Does this evidence bear on the claim it is offered for?
- Is this evidence offered in a context that allows its limitations to be assessed?
- Is this evidence independent of the claim it is offered to support?
- Under what standard and for what purpose is the institution assessing it?
- Has this evidence been contested, and on what grounds?
Examples
| Domain | Claim | Evidence | Wrapper that matters |
|---|---|---|---|
| Law | "The defendant was present" | Eyewitness testimony | Identity of witness, opportunity to observe, cross-examination record, any prior statements |
| Science | "This compound reduces inflammation" | Experimental data | Lab notebook, instrument calibration records, blinding procedure, statistical analysis code |
| Corporate governance | "The CFO approved this expenditure" | Signed authorization | CFO's identity and role at the time, spending authority threshold, date and context of signing |
| Publishing | "This account is accurate" | Author's sources and notes | Which sources were consulted, what was corroborated, what was author's direct observation |
| Digital governance | "This LLM correctly interpreted the input" | Model certificate + output | The wrapper establishes provenance and authentication; separate assessment determines relevance and support |
| Ordinary life | "I completed the task" | Photos, receipts, witnesses | The photos' timestamps, the receipts' authenticity, the witnesses' relationship to the claim |
Distinctions
Evidence ≠ Proof. Evidence is information offered for or against a claim. Whether an evidence set satisfies a proof standard is a separate, criterion-relative judgment. Calling an item "proof" can conceal the standard, inferential steps, limitations, and remaining challenges that should stay available for inspection.
Evidence ≠ Claim. A claim is an assertion made by an agent. Evidence is information offered in support of or against a claim. An agent may make a claim based on evidence, or may offer evidence independently of a specific claim to support a body of knowledge. Claims are active (an agent makes them); evidence is offered (it is provided for judgment). A claim without evidence is still a claim; it is just unsupported.
Evidence ≠ Record. A record is a durable institutional artifact — a ledger entry, a document, a commitment. A record may serve as evidence, but evidence is not defined by being a record. An eyewitness account is evidence that is not a record. A falsified record is a record that should not function as evidence. The evidentiary function of a record depends on its provenance and context, not on its being a record.
Evidence ≠ Interpretation. An interpretation is an act of making meaning from evidence. Evidence is the material; interpretation is the act. The same evidence may support different interpretations; a good interpretation makes explicit which evidence it draws on and how. Conflating evidence with interpretation obscures who is doing the inferential work and what constraints the evidence actually provides.
Evidence ≠ Authority. Authority is the recognized right to decide. Evidence is information bearing on what should be decided. A court's judgment is an authority act; the testimony it relied on is evidence. Authority determines whose decision counts; evidence informs what that decision should be. Treating authority as evidence — "X said so, therefore it is true" — is an epistemic failure with consequences for institutional legitimacy.
Common Failure Modes
| Mode | Description |
|---|---|
| Provenance-stripped evidence | Information is offered without its provenance — the conditions of its production are unknown, unverifiable, or concealed. The information may be accurate or relevant, but its origin and transformations cannot be responsibly assessed. Where to look: evidence that arrives without attribution, methodology, or custody record. |
| Weight conflated with tier | Evidence in a high tier is assumed to be strong evidence; evidence in a low tier is assumed to be weak. But tier is a classification of provenance class, not a guarantee of reliability. High-tier evidence may be technically pristine and factually wrong; low-tier evidence may be crude in form but accurate. Where to look: institutional decisions that treat tier as a substitute for evaluation. |
| Independence violation | Evidence produced by or at the direction of the party who benefits from it is presented without disclosure of this relationship. The evidence may be accurate but its independence cannot be assessed. Where to look: evidence produced by parties with a direct interest in its conclusions, presented without disclosure of that interest. |
| LLM evidence overclaiming | A model-produced interpretation is treated as observation, or its provenance is mistaken for support. Where to look: model output used as factual evidence without independent grounding and relevance assessment. |
| Evidence exclusion as decision | An institution excludes evidence on procedural grounds and treats the exclusion as settling the underlying question. Evidence may be excluded for good procedural reasons while the underlying question remains genuinely open. Where to look: institutions that use procedural exclusion of evidence to avoid substantive evaluation. |
Evidence Profile
Evidence must not be placed on a single L0–L4 ladder. Producer identity, provenance completeness, authentication, corroboration, review, and support for a proposition are independent properties. A cryptographic signature authenticates an artifact or signer; it does not make the artifact's claims true. Human authorship does not outrank model production by itself, and documentation does not guarantee reliability.
EvidenceProfile(e) ::= {
producer,
provenance_completeness,
authentication,
corroboration,
review_stage,
relevance_to_claim,
support_direction: supports | undermines | neutral | disputed
}
If Substrate retains L0–L4 labels in an implementation context, they are local handling classes only. They must not be presented as a general scale of truth, warrant, reliability, or institutional authority.
Minimum Viable Test Case
Claim(c₁): "This encyclopedia entry accurately represents the concept of Evidence"
Evidence offered for c₁:
e₁ = LLM drafting output
Provenance: model_assistant, claude-sonnet-4-6, session 2026-06-29
Profile: model-produced, provenance documented, unreviewed
Relevance: bears directly on the wording under review
Support direction: disputed until independently assessed
Wrapper: CLAUDE.md collaboration protocol; draft marked human_reviewed: false
e₂ = Wiki architecture page alignment
Provenance: wiki/architecture/evidence-epistemology.md, mined 2026-06-29
Profile: human-authored, traceable source, relevance requires assessment
Support direction: supports alignment with prior project synthesis
e₃ = Editorial review by human_author
Provenance: human_author review of draft [timestamp]
Profile: human review act, attributable and scoped to editorial criteria
Effect: records review; does not by itself make the entry true, valid, or published
Verdict:
Without e₃, the claim remains unreviewed and its editorial disposition remains pending.
With e₃, the institution has a review record but must still make a separate publication judgment.
human_reviewed: false → ReviewStage(c₁) remains unexamined or provisional.
status: draft → unchanged unless a separately authorized publication act occurs.
Cross-References
Required
- Claim — evidence is always offered in support of or against a claim; without one, information is background, not evidence
- Institution — institutions define what counts as admissible evidence for a stated purpose
- Provenance — records origin, custody, and transformation without serving as a truth score
Consequential
- Recognition — institutional acceptance is a separate scoped act, not an automatic effect of evidence
- Commitment — evidence of commitment creation and fulfillment is required for accountability
Evidential
- Interpretation — interpretation is the act of making meaning from evidence; evidence is the material it works on
- Ledger — ledger records may function as evidence when offered in relation to a claim
- Receipt — a governance-grade record whose evidential significance remains claim- and scope-relative
- Standing — standing determines who may offer evidence and in what institutional context
- Authority — who decides what counts as adequate evidence; authority over evidence rules is a constitutional question