---
id: ESRC-WP-0004
type: workplan
title: "Local citation recovery and external source discovery hooks"
domain: infotech
repo: evidence-source
status: proposed
owner: codex
topic_slug: citation_evidence_mvp
created: "2026-07-08"
updated: "2026-07-08"
spec_refs:
  - INTENT.md
  - README.md
---

# ESRC-WP-0004 — Citation recovery and source discovery hooks

`evidence-source`'s original intent includes recovering citations when a stored
selector goes stale and discovering the external source a document was drawn
from. This is the largest deferred strand and depends on the anchoring layer's
selector model.

## Open questions

- What is the recovery contract — does this repo *detect* stale selectors, or
  only provide the re-ingest/re-fingerprint primitives the anchor layer calls?
- Where does external source discovery (URL/DOI resolution) belong relative to
  `citation-engine` and the umbrella?

## Sketch

```task
id: ESRC-WP-0004-T01
status: todo
priority: low
```
Design the recovery boundary with the anchor layer: define what
`evidence-source` owns vs. what stays in anchoring.

```task
id: ESRC-WP-0004-T02
status: todo
priority: low
```
Prototype re-ingest/re-fingerprint recovery primitives and a discovery hook
interface (no network coupling baked into the core).