---
id: RCLK-WP-0003
type: workplan
title: "Implement isolated authority and application clock"
domain: infotech
repo: railiance-clock
status: proposed
owner: codex
topic_slug: custodian
created: "2026-09-14"
updated: "2026-09-14"
depends_on_workplans:
  - RCLK-WP-0002
---

Implement only the reviewed contract. Runtime language selection, API schema and dependency policy follow RCLK-WP-0002; no live secrets needed for fake-clock development.

## Implement authority sample and health adapter

```task
id: RCLK-WP-0003-T01
status: wait
priority: high
```

Depends on 0002 adopted sample/trust/UTC contract. Implement bounded sample exchange, nonce binding, health/error state and epoch handling with disposable signing keys. Verify C02–C05/C13–C15.

## Implement application clock and attribution interface

```task
id: RCLK-WP-0003-T02
status: wait
priority: high
```

Depends on adopted interval/platform contract. Provide explicit quality states, monotonic mapping, sample-age policy, restart/suspend invalidation and immutable event attribution. Verify C01/C06–C09/C11/C12.

## Prove isolated consumer integration and package review

```task
id: RCLK-WP-0003-T03
status: wait
priority: high
```

Run deterministic boundary/property tests plus adversarial delay/replay and real platform lifecycle probes. Demonstrate +/− local clock skew with no OS changes. Preserve consumer approval/CAS failures with fixtures; publish dependency/SBOM and reproducible build evidence. No native production claim from synthetic fixtures.