# Evidence and claim taxonomy

Separate a design contract, an implementation, its evidence, and a publication claim.

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Document ID: `pllm.docs.understand.evidence-claims`  
Release: `0.1.0`

| Axis | Meaning |
| --- | --- |
| Normative contract | Intended invariant; not implementation proof |
| Semantic adapter support | Model configuration lowers to neutral semantics |
| Compiler coverage | Named profile covers reported operators |
| Runtime support | Locked plan executes in tested implementation scope |
| Benchmark evidence | Measurements bound to environment, workload, and cohort |
| Generation quality | Predeclared output-quality result for model/workload |
| Privacy evidence | Scoped formal or empirical assurance result |
| Deployment maturity | Tested placement, authentication, recovery, and operations scope |
| Source-reported claim | Original publication statement, not PLLM result |
| Reproduction fidelity | Match to locked source/oracle in recorded scope |

Unknown is never zero or pass. Every claim links exact artifact, date/version, cohort, limitations, and applicable assurance.
Use [research evidence records](/research/evidence/) to inspect those scopes and
limitations before repeating a claim.