---
title: "Inclusion proof for a leaf (?leaf=<64 hex>): batch, index, path and the signed head; 202 while pending"
method: GET
path: "/api/v1/log/proof"
---

# Inclusion proof for a leaf (?leaf=<64 hex>): batch, index, path and the signed head; 202 while pending

`GET /api/v1/log/proof`

## Request

- Base URL: `https://crawlcheck.io`
- URL: `https://crawlcheck.io/api/v1/log/proof`
- Auth: none required

## Query parameters

- `leaf` string, required

## Response `200`

proof

- object, nullable
  - `leaf_hash` unknown
  - `state` string, nullable
  - `batch` number, nullable
  - `index` number, nullable
  - `batch_size` number, nullable
  - `path` unknown[], nullable
    - unknown
  - `sth` object, nullable
    - `kind` string, nullable
    - `v` number, nullable
    - `log_id` string, nullable
    - `batch` number, nullable
    - `first_index` number, nullable
    - `batch_size` number, nullable
    - `tree_size` number, nullable
    - `batch_root` unknown
    - `prev_sth_sha256` unknown
    - `created_at` string, nullable
    - `sha256` unknown
    - `signature` unknown

## Other responses

- `202`: pending

---

[API](https://skmtc.dev/crawlcheck/apis/crawlcheck-api.md) · [All operations](https://skmtc.dev/crawlcheck/apis/crawlcheck-api/llms.txt) · [OpenAPI document](https://skmtc.dev/crawlcheck/apis/crawlcheck-api/revisions/57acbd6d4489?raw)