---
title: "network.machine.offline@1 · OpenVibe.Services"
canonical: "https://openvibe.services/docs/contracts/network.machine.offline"
updated: null
---

# network.machine.offline@1 · OpenVibe.Services

HTML: [network.machine.offline@1 · OpenVibe.Services](https://openvibe.services/docs/contracts/network.machine.offline)

# NetworkMachineOfflinePayload `network.machine.offline@1`

Generated at 2026-11-13 06:25:48 UTC from [`openvibe-contracts v0.419.0`](https://github.com/OpenVibers/OpenVibe.Contracts/tree/v0.419.0) and [`openvibe-sdk v0.161.0`](https://github.com/OpenVibers/OpenVibe.SDK/tree/v0.161.0).

- Version: 1.0.0
- Owner: network
- Visibility: first-party
- Status: active
- Compatibility: backward
- Schema: [`https://openvibe.network/contracts/events/payloads/network.machine.offline.v1.json`](/docs/contracts/network.machine.offline.json)

network.machine.offline v1 (OpenVibe.Network, plan L34: the machines hub). A machine of a person went offline: it is no longer connected to Bot. Network republishes Bot's change, so a consumer of the network's events hears about a machine once, in one place. Envelope: subject { type: machine, id: <dev\_…> }, visibility internal, actor service:network.

## Fields

| Field | Type | Required | Description | Constraints |
| --- | --- | --- | --- | --- |
| `machine_id` | string | yes |  | - `pattern ^dev_[0-9A-HJKMNP-TV-Z]{26}$` |
| `principal_id` | string |  | The machine's node principal on Network, when it has one. | - `pattern ^lnk_[0-9A-HJKMNP-TV-Z]{26}$` |
| `owner` | string | yes | The person the machine belongs to. | - `pattern ^usr_[0-9A-HJKMNP-TV-Z]{26}$` |
| `at` | string | yes |  | - `format date-time` |

## Examples

From the contract's own test fixtures: valid ones validate, rejected ones must fail.

 Valid: machine

~~~~
{
  "machine_id": "dev_01JAB2C3D4E5F6G7H8J9K0MNPS",
  "principal_id": "lnk_01JAB2C3D4E5F6G7H8J9K0MNPS",
  "owner": "usr_01JAB2C3D4E5F6G7H8J9K0MNPS",
  "at": "2026-10-31T09:00:00.000Z"
}
~~~~

Rejected: bad-owner

~~~~
{
  "machine_id": "dev_01JAB2C3D4E5F6G7H8J9K0MNPS",
  "principal_id": "lnk_01JAB2C3D4E5F6G7H8J9K0MNPS",
  "owner": "usr_x",
  "at": "2026-10-31T09:00:00.000Z"
}
~~~~

## Validate

~~~~
const contracts = require('openvibe-contracts');
contracts.validate('network.machine.offline@1', value);   // { valid, errors: [{ path, message }] }
~~~~