# Verify a specific Challenge

**POST /v2/Services/{ServiceSid}/Entities/{Identity}/Challenges/{Sid}**

Verify a specific Challenge.
TODO: Resource-level docs

## Servers



## Parameters

### Path parameters
- **ServiceSid** (string)
  The unique SID identifier of the Service.
- **Identity** (string)
  Customer unique identity for the Entity owner of the Challenge. This identifier should be immutable, not PII, length between 8 and 64 characters, and generated by your external system, such as your user's UUID, GUID, or SID. It can only contain dash (-) separated alphanumeric characters.
- **Sid** (string)
  A 34 character string that uniquely identifies this Challenge.


### Body:  (object)

- **AuthPayload** (string)
  The optional payload needed to verify the Challenge. E.g., a TOTP would use the numeric code. For `TOTP` this value must be between 3 and 8 characters long. For `Push` this value can be up to 5456 characters in length
- **Metadata** ()
  Custom metadata associated with the challenge. This is added by the Device/SDK directly to allow for the inclusion of device information. It must be a stringified JSON with only strings values eg. `{"os": "Android"}`. Can be up to 1024 characters in length.


## Responses
### 200
OK

#### Body:  (object)
- **account_sid** (string | null)
  Account Sid.
- **date_created** (string(date-time) | null)
  The date this Challenge was created
- **date_responded** (string(date-time) | null)
  The date this Challenge was responded
- **date_updated** (string(date-time) | null)
  The date this Challenge was updated
- **details** ()
  Details about the Challenge.
- **entity_sid** (string | null)
  Entity Sid.
- **expiration_date** (string(date-time) | null)
  The date-time when this Challenge expires
- **factor_sid** (string | null)
  Factor Sid.
- **factor_type** (string | null)
  The Factor Type of this Challenge
- **hidden_details** ()
  Hidden details about the Challenge
- **identity** (string | null)
  Unique external identifier of the Entity
- **links** (object(uri-map) | null)
  Nested resource URLs.
- **metadata** ()
  Metadata of the challenge.
- **responded_reason** (string | null)
  The Reason of this Challenge `status`
- **service_sid** (string | null)
  Service Sid.
- **sid** (string | null)
  A string that uniquely identifies this Challenge.
- **status** (string | null)
  The Status of this Challenge
- **url** (string(uri) | null)
  The URL of this resource.


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