---
title: "Changes to Construct PoPoW proof for given min superchain length, suffix length and header ID"
method: GET
path: "/nipopow/proof/{minChainLength}/{suffixLength}/{headerId}"
---

# Changes to Construct PoPoW proof for given min superchain length, suffix length and header ID

`GET /nipopow/proof/{minChainLength}/{suffixLength}/{headerId}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 109 revisions.

- **2026-08-18** `c5405e5f6290`: 2 info
- **2026-08-18** `f0f8fc1040cb`: 2 breaking
- **2026-08-02** `dc0b9844c2d1`: 2 info
- **2023-05-18** `6c5e30b6bac1`: 3 breaking, 3 warning
- **2023-05-16** `616d0b0728d4`: 3 breaking, 3 info

## Changes

- **2026-08-18** `c5405e5f6290`: 2 info
  - added the required property `prefix/items/interlinksProof` to the response with the `200` status
  - added the required property `suffixHead/interlinksProof` to the response with the `200` status
- **2026-08-18** `f0f8fc1040cb`: 2 breaking
  - removed the required property `prefix/items/interlinksProof` from the response with the `200` status
  - removed the required property `suffixHead/interlinksProof` from the response with the `200` status
- **2026-08-02** `dc0b9844c2d1`: 2 info
  - added the required property `prefix/items/interlinksProof` to the response with the `200` status
  - added the required property `suffixHead/interlinksProof` to the response with the `200` status
- **2023-05-18** `6c5e30b6bac1`: 3 breaking, 3 warning
  - the `prefix/items/header/adProofsRoot` response's property type changed from no type to `string`, and format from no format to `base16` for status `200`
  - the `suffixHead/header/adProofsRoot` response's property type changed from no type to `string`, and format from no format to `base16` for status `200`
  - the `suffixTail/items/adProofsRoot` response's property type changed from no type to `string`, and format from no format to `base16` for status `200`
  - removed the optional property `prefix/items/header/$ref` from the response with the `200` status
  - removed the optional property `suffixHead/header/$ref` from the response with the `200` status
  - removed the optional property `suffixTail/items/$ref` from the response with the `200` status
- **2023-05-16** `616d0b0728d4`: 3 breaking, 3 info
  - the `prefix/items/header/adProofsRoot` response's property type changed from `string` to no type, and format from `base16` to no format for status `200`
  - the `suffixHead/header/adProofsRoot` response's property type changed from `string` to no type, and format from `base16` to no format for status `200`
  - the `suffixTail/items/adProofsRoot` response's property type changed from `string` to no type, and format from `base16` to no format for status `200`
  - added the optional property `prefix/items/header/$ref` to the response with the `200` status
  - added the optional property `suffixHead/header/$ref` to the response with the `200` status
  - added the optional property `suffixTail/items/$ref` to the response with the `200` status

---

[Operation](https://skmtc.dev/ergoplatform/apis/ergo-node-api/docs/nipopow/proof/:minChainLength/:suffixLength/:headerId/get.md) - [API](https://skmtc.dev/ergoplatform/apis/ergo-node-api.md) - [Page](https://skmtc.dev/ergoplatform/apis/ergo-node-api/changes/nipopow/proof/:minChainLength/:suffixLength/:headerId/get)