# post.authenticity_changed

A tracked post's authenticity score crossed 40, in either direction.

### When it fires

Only while the tracking window is open. A post's first score never fires it.

### Payload notes

Carries `score`, `previousScore`, `confidence` and `reasons`.




**Payload for `post.authenticity_changed`:**

- **id** (required) `string`: Stable webhook event ID: the dedupe key, also sent as the X-Zernio-Event-Id header and identical on every retry and redelivery. It identifies the event only, never an account or other resource.
- **profiles**: `WebhookProfiles` - See schema definition
- **test** `boolean`: Always true when present: only a sample sent by POST /v1/webhooks/test with an event carries it. Real deliveries never do.
- **event** (required) `string`: No description - one of: post.authenticity_changed
- **post** (required) `object`: 
  - **id** (required) `string`: Zernio's id for the tracked post
  - **platform** (required) `string`: No description (example: "instagram")
  - **platformPostId** (required) `string`: The post's id on the platform
  - **accountId** (required) `string`: The connected account the post belongs to
  - **profileId** (required) `string`: The profile that account belongs to
- **authenticity** (required) `object`: 
  - **score** (required) `integer`: 0 to 100, higher is more authentic
  - **previousScore** (required) `integer`: No description
  - **confidence** (required) `number`: 0 to 1, how much data the score rests on
  - **reasons** (required) `array[object]`: 
    - **code** (required) `string`: No description
    - **weight** (required) `number`: No description
  - **version** (required) `string`: Scoring model version
  - **computedAt** (required) `string` (date-time): No description
- **timestamp** (required) `string` (date-time): UTC time at which Zernio generated this event (set once when the event payload is built, before delivery is queued). Retries and redeliveries keep the original value, so it reflects the event, not the delivery attempt.