Add temporal claims to preserve corrections in wiki pages

[Amidwestnoob]

Feature description

Add optional temporal claims to summary, concept, and entity pages.

Each claim must have these fields:

• id
• text
• as_of
• status
• source_anchor
• supersedes
• superseded_by

A claim can also have an authority field.

Motivation

OpenKB pages store factual state as prose. A page cannot identify the date of a claim. A page cannot separate proposed assistant output from source evidence. A page also cannot show how new evidence corrects an old claim.

The feature must preserve claim history. It must also provide strict current reads that return only validated claims.

Proposed solution

• Create deterministic claim IDs in code.
• Store claims as a one-line JSON array in YAML frontmatter.
• Validate the as_of, status, source_anchor, and authority fields.
• Apply page-local supersession links.
• Reject backward supersession links.
• Keep stored claims unchanged when an incoming duplicate claim has the same ID.
• Limit assistant authority.
• Set model claims from the document compiler to document authority.
• Add a query tool for strict current reads.
• Preserve old claims as history.

Alternatives considered

OpenKB can keep factual state only in prose. This option does not provide deterministic current-state reads or an audit trail.

A transport-specific conversation system can also manage claims. This option would couple OpenKB core to one source format. A generic claim layer keeps transport policy outside OpenKB.

Scope

Medium.

The change affects:

• Frontmatter helpers
• Compiler output and page writes
• Query tools
• Schema documentation
• Deterministic tests

The change does not add transport adapters, scheduler rules, privacy rules, or live-ingestion code.