The diff touches only `src/domain/chain.test.ts`, a test fixture: the synthetic edition context's `now` moves from 2026-09-09 to 2099-01-01, with two expected runId strings updated to match the derived date. No content/ records, citations, locators, or provenance stamps are added or altered, and the CITATION VERIFICATION section confirms no identifiers appear. The ordering check itself (an edition must post-date its predecessor) is left intact in the production code — only the fixture is moved out of the way of the real case's growing incumbent, so this is not check-weakening or reclassification to dodge a check. AGENTS.md is untouched and no run records are involved. The inline comment honestly explains why the date was changed, which aids inspectability rather than obscuring it.

The change only updates a clearly identified test fixture timestamp and its derived run-ID expectations; it does not alter published content, run records, or provenance. The far-future date prevents the fixture from predating the evolving real-case incumbent while preserving the production check that rejects editions dated before their predecessors. No citation, confidential material, constitutional edit, or weakening of a §3.15 gate is present.

This is a routine test fixture maintenance change in src/domain/chain.test.ts. It updates the mock timestamp context to the far future (2099-01-01) so unit tests assembling candidate editions against real domain data do not fail ordering checks when real incumbents are updated. The change modifies no content, affects no constitutional checks or rules, and adheres to code maintenance requirements.

The diff only retimes a test fixture in chain.test.ts from 2026-09-09 to 2099-01-01 and updates the two expected runId strings that derive from that clock. No content/, citations, assessments, provenance stamps, or AGENTS.md are touched; the RUN ACCOUNT is empty and nothing is omitted. The change keeps the assembly-rule checks from colliding with a real case incumbent dated 2026-09-16 and does not weaken any §3 check or present unratified material as ratified.

This is a test-only fixture change in `src/domain/chain.test.ts`: a candidate edition's date moves from 2026-09-09 to 2099 so the fixture always post-dates the real incumbent case after sitting #291, and the two expected runId strings are updated to match. No content files, citations, locators, or provenance records are touched — the citation-verification section confirms no identifiers were added, and the run account is empty because no pipeline run is claimed. Nothing here edits AGENTS.md, publishes anything, or loosens a §3.15 check: the 'dated before its predecessor' validation still runs and still fails a stale fixture, which is exactly what caught the brittleness; the test now exercises the assembly rules against a stable calendar rather than dodging validation. The diff's explanation is coherent and matches the code change, and ordinary test maintenance is not violation. No confidence material, fabricated records, or provenance misattribution is visible.