refactor spec OKF

docs/rules/fragments/02_Terminology.md

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+---
+type: Section
+title: Terminology
+---
+
+# Terminology
+
+- **Knowledge Bundle** (or **bundle**): a self‑contained, hierarchical collection of knowledge documents.
+- **Concept**: a single unit of knowledge represented as one markdown document.
+- **Concept ID**: the file path of the concept within the bundle, without the `.md` suffix.
+- **Frontmatter**: a YAML metadata block at the top of a markdown file.
+- **Body**: the markdown content following the frontmatter.
+- **Link**: a standard markdown link used to express relationships between concepts.
+- **Source**: a material a concept derives from, recorded in the `sources` frontmatter field.
+- **Provenance**: the set of sources a concept derives from.
+- **Credibility signal**: objective per‑source facts (author, usage_count, last_modified).
+- **Actor**: identifier of who performed an action, using the convention `<producer>/<version>`, `human:<id>`, or `process:<id>`.
+- **Trust tier**: level derived from the `verified` field (unverified, machine‑confirmed, human‑reviewed).
+- **Attested Computation**: a concept (`type: Attested Computation`) that carries a sanctioned way to compute a value.
+- **Executor**: runs a computation and returns a receipt.
+- **Receipt**: evidence returned by an executor, inspected by an attester.
+- **Attester**: deterministic code that validates a receipt.