---
title: "Lineage"
description: "every hop of a unit with its stamp and span, and its downstream footprint, marking unavailable what a store cannot answer"
section: concepts
address: /concepts/lineage
contract: 0476e35e6e275db5
---

# Lineage

every hop of a unit with its stamp and span, and its downstream footprint, marking unavailable what a store cannot answer

[figure: Lineage is a view at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | view |
| scope | none |
| key | none |
| store | none |
| family | harness |



## Fields


| field | type | required | note |
|---|---|---|---|
| `hops` | [HopStamp](/concepts/hopstamp) | yes |  |
| `footprint` | `[id]` | yes |  |
| `unavailable` | `[text]` | yes |  |



## Routes that use it
- [`/v1/read/lineage`](/reference/read/lineage) returns it