Context data model

Name	Type	Description	Localised	Always available
`accessPointUid`	Integer	The unique Access Point identifier within the SDP. Can be used to request the full Access Point details from the SDP using the Access Point service. An Access Point provides details on the location the device resides in and how it should connect to the platform.	No	Yes
`accountNumber`	String	The account number. Usually provided by the service provider.	No	Yes
`accountOriginId`	Integer	In cases where the account number needs to be defined within the SDP for some reason, this field can be used to identify the system providing the account origin key information, if present.	No	No
`accountOriginKey`	String	In cases where the account number needs to be defined within the SDP for some reason, this field can be used to define the original account number as provided by the service provider. Rarely used.	No	No
`accountUid`	Integer	The unique account identifier within the SDP. This identifier is not known externally to the SDP, so it should only be used for SDP API calls. Account number should be used for account identification wherever possible.	No	Yes
`casn`	String	The Conditional Access Serial Number of the device CA chipset. Only applicable to set top boxes. It can be changed by a firmware change, but this is not common, so it can be used as a device identifier for signon.	No	No
`challengeId`	String	The solution to a recent challenge obtained from the `challengeAggregateService`, where required. This field is used in NAGRA Media PRM deployments that use challenges to provide additional security around purchasing and licensing. It only needs to be set when providing a `Context` object to an API that requires this additional security, such as those on `bocPurchaseService`. The same challenge ID may be used multiple times until it expires, normally in the order of 30 seconds after issue. Once a challenge ID expires, you must to obtain a new challenge using `challengeAggregateService.acquireSecureChallenge` and refresh this field with the decrypted challenge ID.	No	No
`deviceOriginId`	Integer	The identifier of the external system that provisioned the device. Only used if `deviceOriginKey` is present.	No	No
`deviceOriginKey`	String	The external identifier of the device. Not typically used, as external systems usually also identify devices by hardware identifiers such as CASN.	No	No
`deviceProfileUid`	Integer	Unique device profile identifier. Can be used to retrieve device profile information from the Profile service.	No	No
`deviceType`	String	The device type. Must be one of: `STB` – set top box `MP` – media player	No	Yes
`deviceUid`	Integer	Can be used to retrieve the full device information from the Device service.	No	Yes
`drmInstanceId`	String	The ID of the DRM system the client wishes to use. Typically not needed, as the DRM system is usually determined by the content itself.	No	No
`featureNameList`	List of strings	A list of the `name` of each Feature in the `DeviceProfile` associated with the request. If the client does not supply a value for this field, it is derived from the `featureUidList` where possible.	No	No
`featureUidList`	List of longs	A list of the `uid` of each Feature in the `DeviceProfile` associated with the request. If the client does not supply a value for this field, it is derived from the `deviceProfileUid` where possible.	No	No
`mediaPlayerId`	String	The identifer of the open device. Only applicable to open devices. Usually created by the DRM system during device initialisation.	No	No
`smartcardId`	String	The `smartcardId` of the device's smartcard, if there is one.	No	No
`userUid`	Integer	The user's unique identifier within the SDP.	No	Yes