---
title: "Submit External Signature"
method: POST
path: "/succession/witness/submit/{node_id}"
tags: ["registrar"]
---

# Submit External Signature

`POST /succession/witness/submit/{node_id}`

## Request

- Base URL: `https://cathedral-ai.com` (the document declares no server; this is the origin it was published from)
- URL: `https://cathedral-ai.com/succession/witness/submit/{node_id}`
- Auth: none declared

External registrar node submits its Ed25519 signature for a succession package.
The signature is verified against the node's registered public key.

## Path parameters

- `node_id` string, required

## Request body

- ExternalSignatureRequest
  - `package_id` string, required
  - `witness_message` string, required
  - `signature` string, required
  - `signed_at` string, required
  - `trust_score` number, required

## Response `201`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/cathedral-ai/apis/cathedral-memory-service.md) · [All operations](https://skmtc.dev/cathedral-ai/apis/cathedral-memory-service/llms.txt) · [OpenAPI document](https://skmtc.dev/cathedral-ai/apis/cathedral-memory-service/revisions/e40fefc11dcf?raw)