---
title: "Sign hash with NOM 151"
method: POST
path: "/omni/sign-hash/nom151"
tags: ["Nom151"]
---

# Sign hash with NOM 151

`POST /omni/sign-hash/nom151`

Sign any SHA-256 hash (64-hex) with NOM 151.

## Headers

- `api-version` string, required

## Request body

- SignNom151HashRequest
  - `hashToSign` string — Hash to be signed with NOM151

## Response `200`

Response:
- signedString: String. NOM 151 constancia (digital evidence)
- reference: String. Reference folio (unique confirmation id)

- object

## Other responses

- `400` — Bad Request

---

[API](https://skmtc.net/incode/apis/incode-omni-api.md) · [All operations](https://skmtc.net/incode/apis/incode-omni-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/incode/incode-omni-api/revisions/30cd6d926ea3/schema)