# Q30 · Orchard clock certificate

Certificate

C kept the day correctly on O-01 and O-08. The certificate sees only those slips. A sound clock cannot restore a missing week.

```json
{
  "clock": "C",
  "valid_observation_ids": [
    "O-01",
    "O-08"
  ],
  "weekday_labels_verified": true
}
```

## Related records

- [Q28 · Two orchard observation slips](/archive/quiet-index/r5/q28)
- [Q29 · Orchard coverage inventory](/archive/quiet-index/r5/q29)
- [Q15 · Offset validity slip](/archive/quiet-index/r5/q15)

[An unnumbered point in the margin](/margin/leaf-9ab814)

Canonical: /archive/quiet-index/r5/q30
Revision: quiet-index-r5. The margins keep count.