Enhanced Document Verification

Only available where we are integrated into the document's issuing authorities' database

Overview

Enhanced Document Verification is a powerful extension of our Document Verification product, providing an additional layer of security and validation for identity documents. This check verifies that a document is authentic and cross-references the information on the document with a government database in a single call.

This dual check makes it extremely difficult for fraudsters to onboard and allows you to comply with document storage requirements.

To run an Enhanced Document Verification job, we require:

  1. A selfie of the user

  2. An image of the document

  3. The country of issuance

  4. The ID type of the document (this must be one of our supported documents)

The Three Components of an Enhanced Document Verification

  1. Document Authentication: Like Document Verification, Enhanced Document Verification allows you to verify the authenticity of identity documents by checking security features, MRZ and barcodes.

  2. User Authentication: Next, it confirms that the submitted ID document belongs to the user by comparing their submitted selfie with the photo on the document. This step ensures that the person presenting the document is its rightful owner.

  3. Issuer Data Cross-Check: Enhanced Document Verification cross-references the document data with official government database records. This step double-checks the document's legitimacy by comparing the OCR information extracted from the document to a record on a government ID registry.

Supported Documents

These are only the documents supported by Enhanced Document Verification. Please refer to the supported regions in our documentation for the complete list of documents supported on our Document Verification product.

Country
Country Code
ID Type
Details

Ghana

GH

PASSPORT

Passport

Ghana

GH

SOCIAL_ID

SSNIT

Ghana

GH

VOTER_ID*

New Voter's ID

Kenya

KE

RESIDENT_ID

Alien Card

Kenya

KE

IDENTITY_CARD

National ID

Kenya

KE

PASSPORT

Passport

Nigeria

NG

VOTER_ID

Voter's ID

South Africa

ZA

IDENTITY_CARD

National ID and Greenbook

*Only supports Ghana Voter IDs issued from 2020

Integration Options

Available via the Rest API

Image Specifications

Please ensure that the orientation of your document images matches the way information is printed on the document. For example, if the document is meant to be read vertically(portrait) like a passport, do not rotate the image to a horizontal (landscape) orientation.

To check the authenticity of the document, we require high-resolution images. The image should be cropped to include the entire document with minimal background.

The following are the minimum specifications we require for the document image:

  • The minimum resolution on the horizontal (longer) side of credit card-sized ID cards should be 1500 pixels.

  • Minimum resolution on the horizontal (longer) side of passports should be 2200 pixels.

  • The total Image size should be at least 600KB but no more than 10MB.

To get the best results on document verification, we recommend the document image meets the following criteria:

  1. Ensure the image is not tightly cropped. All edges of the ID document should be visible.

  2. The face in the ID photo should be visible.

  3. The document should be placed on a flat, non-white surface for the capture.

  4. If the document contains an MRZ code, ensure no part of the code is covered by a finger or is cut off in the image.

  5. Avoid fingers covering any part of the document.

  6. Ensure no glare or bright light (flash) obstructs information on the document.

  7. All text on the document must be readable after capture.

Request Values

You need to perform two steps to use this product:

  • Make a request to Smile ID for a job to be performed

  • Upload the job payload

NOTE: The value of the job_type for this product is 11

Making a Job Request

Request Type: POST

Environment
URL

Sandbox

Production

Keys

Type

Required

Description

source_sdk

string

Yes

The integration option you are using. For rest api send the value as "rest_api"

source_sdk_version

string

Yes

The version of the integration option you are using

signature

string

Yes

Your calculated access signature

timestamp

string

Yes

The timestamp that was used to calculate the signature (in ISO date/time format)

smile_client_id

string

Yes

partner_params

object

Yes

A JSON object containing the partner parameters below as well as any additional key value pairs you wish to include for tracking which will be returned in the response

partner_params.job_type

string

Yes

The type of job you want to perform. This should be set to 11

partner_params.job_id

string

Yes

A value generated by you, so you can track jobs on your end. This value must be unique, can be any string and can follow your identifier convention

partner_params.user_id

string

Yes

A value generated by you, so you can track users on your end. This value must be unique, can be any string and can follow your identifier convention

model_parameters

string

No

This parameter is specific to mobile SDK, can be left as an empty JSON object

callback_url

string

Yes

A publicly available endpoint on your system where Smile ID will send the results of a job to in the form of a POST request (with no authorisation headers)

At the end of the request, you will receive a job number for tracking and a url where you will be uploading your images.

Example Request

{
  "source_sdk": "rest_api",
  "source_sdk_version": "1.0.0",
  "signature": "<calculated signature>",
  "timestamp": <timestamp e.g. 2021-08-12T17:57:00.614879>,
  "smile_client_id": "<partner id>",
  "partner_params":
      {
        "job_type": 11,
        "job_id":"job_09876",
        "user_id":"user_12345"
      },
          "model_parameters": {},
          "callback_url": "https://<partner side callback URL>/"
}

In the response body to the prep upload request, you will receive an AWS s3 bucket link. You will upload the images for face and identity document verification to this link. The URL is structured like:

"https://smile-uploads-test.s3.us-west-2.amazonaws.com/videos/ <partner_id>/<partner_id>-<smile_job_id>-<random hash>/attachments.zip ?AWSAccessKeyId=<> &Content-Type=application%2Fzip &Expires=1598449184&Signature=<> &x-amz-security-token=<>&x-amz-server-side-encryption=AES256"

Example Response

200: OK

A record has now been created waiting for the job to be processed once the required data has been uploaded

{
    "upload_url": "https://smile-uploads-test.s3.us-west-2.amazonaws.com/videos/<partner_id>/<partner_id>-<smile_job_id>-<random hash>/selfie.zip?AWSAccessKeyId=<>&Content-Type=application%2Fzip&Expires=1598449184&Signature=<>&x-amz-security-token=<>&x-amz-server-side-encryption=AES256",
    "ref_id": "<partner_id>-<smile_job_id>-<random hash>",
    "smile_job_id": "0000000001",
    "camera_config": "null", ---sdk specific---
    "code": "2202"
}

400: Bad Request

Trying to use a job_id in partner_params that has already been used

{
  "error": "Job already exists. Did you mean to set the retry flag to true?",
  "code": "2215"
}

Uploading the Job Payload

To perform a job, Smile ID requires a Zip file that contains the following information:

  • images - images are ID document photos (bearer's face must be visible), selfie and liveness images (optional)

  • Info.json file - the structure of the info.json file is detailed below

The Zip file must have the same name as the file_name specified while making a job request (prep upload). In the case of the example request above, the filename will be attachments.zip.

Request Type: PUT

Environment
URL

Sandbox

Upload URL you were supplied while making a Job Request

Production

Upload URL you were supplied while making a Job Request

The request body will be of type binary (the zip file)

Info.json file

The info.json file contains the selfie and ID card images required to process the document verification job. The images can either be parsed inline as a base64 encoded string, or the image files themselves can be zipped with the info.json file. Only .jpg file type is supported.

The structure of the info.json file is detailed below

Parameter
Description

package_information

This contains information about the rest api you’re calling. We recommend you use the following as the package_information:

"package_information":

{

"apiVersion": {

"buildNumber": 0,

"majorVersion": 2,

"minorVersion": 0

} }

id_info

{

"country":"<country code e.g. KE>",

"id_type":"<smile ID type keyword e.g. NATIONAL_ID>"

}

images

The images required for the document verification job. There are 3 image types that can be uploaded:

  • Selfie - a single coloured selfie image of the user.

  • ID card image - a single front image of the user’s ID card or two images (front and back of ID card) if the back of the ID card contains vital information such as MRZ code.

The images can be added as base64 encoded strings or the image files themselves can be added to the zip and the filename specified in the info.json. {

"image": "<base64 string of image>",

"file_name": "<name of file in the zip that will be uploaded>"

}

Depending on the image_type_id one of the other parameters (image or file_name) will be an empty string (“”)

Info.json Example

The zip file contains the info.json file only (if images are inline i.e. supplied as base64 encoded strings) or both an info.json file and image files (if the image files themselves are uploaded).

Example zip file and info.json when images are inline (i.e. base64 encoded strings)

The content of the info.json file below:

{
  "package_information":
  {
    "apiVersion": {
      "buildNumber": 0,
      "majorVersion": 2,
      "minorVersion": 0
    }
  },
  "id_info":
  {
    "country":"<country code e.g. NG>",
    "id_type":"<smile ID type keyword e.g. PASSPORT>"
  },
  "images": [
    {
      <Use this for the selfie>
      "image_type_id": 2,
      "image": "iVBORw0KGgoAAAANSUhEUgAAArgWElmTU0A- - -truncated base64 string",
      "file_name": ""
    },
    {
      <Use this for the ID card>
      "image_type_id": 3,
      "image": "iVBORw0KGlDQ1BJQ0MgUHJvZmlsZQAASImVVw- - -truncated base64 string",
      "file_name": ""
    }
  ]
}

Example zip file and info.json when images are uploaded as files

The content of the info.json file below:

{
  "package_information":
  {
    "apiVersion": {
      "buildNumber": 0,
      "majorVersion": 2,
      "minorVersion": 0
    }
  },
  "id_info":
  {
    "country":"<country code e.g. KE>",
    "id_type":"<smile ID type keyword e.g. NATIONAL_ID>"
  },
  "images": [
    {
      <Use this for the selfie>
      "image_type_id": 0,
      "image": "",
      "file_name": "Selfie.jpeg"
    },
    {
      <Use this for the ID card>
      "Image_type_id": 1,
      "image": "",
      "file_name": "ID.jpg"
    }
  ]
}

How Smile ID Processes the Job

Action

Description

Proof of life & spoof detection

Performed on user submitted selfie

Selfie compares

Selfie comparison to user submitted document image

Document Verification

To verify the document we confirm the following:

  • The name, date of birth, and ID number are clearly stated on the document

  • The data on the document is consistent i.e. MRZ and Human readable information match

  • Document has visible security features

  • Document image is not blurry and can be processed

  • The document image provided matches the document type the user claims to have submitted

Return Values

The full list of keys and possible return values are highlighted below:

Name

Type

Description

Value

PartnerParams.job_id

String

A unique reference defined by you to keep track of the job

PartnerParams.job_type

String

The type of job you performed.

11

PartnerParams.user_id

String

A unique reference defined by you to keep track of the user

ResultCode

String

Numeric value of the job outcome.

ResultText

String

Textual value of the job outcome. Human readable value for the result.

SmileJobID

String

The Smile internal reference number for the job

Country

String

The country of issuance of the ID type

IDType

String

The ID type of the document ID

IDNumber*

String

The ID number extracted from the document ID either by OCR or decoding the MRZ

FullName*

String

The full names as retrieved from the ID authority database

DOB*

String

The date of birth retrieved from the ID authority database

Gender*

String

The gender retrieved from the ID authority database

IssuanceDate

string

The issuance date of the document ID retrieved from the ID authority database

ExpirationDate*

String

The expiration date of the document ID retrieved from the ID authority database

Document

String

The cropped and upright document image returned as a base64 string

PhoneNumber*

String

The phone number retrieved from the ID authority database

PhoneNumber2*

String

The second phone number retrieved from the ID authority database

Address*

String

The address retrieved from the ID authority database

signature

String

The outgoing signature, you can use this to verify that the response is from Smile ID

timestamp

String

The outgoing timestamp in ISO date/time format, use this to calculate the outgoing Signature

Actions

Object

The JSON object contains the results of checks Smile ID performed on the job

Actions.Human_Review_Compare

String

If the Smile ID system can not automatically decide on the face compares it will be reviewed by humans and the result will be displayed here

“Passed”

“Failed”

“Unable to Determine”

“Not Applicable”

Actions.Human_Review_Liveness_Check

String

If the Smile ID system can not automatically decide on the liveness of the user submitted selfie, it will reviewed by humans. The result is displayed here. NOTE: the machine liveness check result Liveness_Check is reported as failed even if the reviewer passes the review

“Passed”

“Failed”

“Unable To Determine”

“Not Applicable”

Actions.Liveness_Check**

String

Liveness check on user provided selfie

“Passed”

“Failed”

“Under Review”

“Not Applicable”

Actions.Register_Selfie

String

Register selfie of user

“Approved”

“Rejected”

“Not Applicable”

Actions.Verify_Document

String

Verify the document ID submitted by the user

“Passed”

“Failed”

“Under Review”

“Not Applicable”

Actions.Return_Personal_Info

String

Return user’s PII from id authority

“Returned”

“Not Returned”

“Not Applicable”

Actions.Selfie_To_ID_Card_Compare

String

Compare user-submitted selfie to photo on user-submitted ID card

“Completed”

“Under Review”

“Not Applicable”

*Only returned if information is on the physical ID card

** If a single selfie image is provided, the system will only perform a photo of photo check

Example JSON Response

{
  "Actions": {
    "Human_Review_Compare": "Passed",
    "Human_Review_Liveness_Check": "Passed",
    "Liveness_Check": "Passed",
    "Register_Selfie": "Approved",
    "Return_Personal_Info": "Returned",
    "Selfie_To_ID_Card_Compare": "Completed",
    "Verify_Document": "Passed"
  },
  "Country": "KE",
  "DOB": "1989-01-20",
  "Document": "----base64 encoded string----",
  "ExpirationDate": "2025-11-26",
  "IssuanceDate": "2000-01-01",
  "FullName": "John Joe Doe",
  "Gender": "M",
  "IDNumber": "B00123456",
  "IDType": "NATIONAL_ID",
  "PartnerParams": {
    "job_id": "Testing_0036",
    "job_type": 11,
    "user_id": "Test_0036"
  },
  "ResultCode": "0810",
  "ResultText": "Document Verified After Human Review",
  "SmileJobID": "0000000046",
  "signature": "---signature---",
  "timestamp": "2021-12-14T20:07:56.829Z"
}

Evaluating the Results

Actions performed on the product are not completed at the same time, so we send results to your callback endpoint when they are ready. Also, if the Smile ID system can not automatically make a decision on an action, it is passed to our human reviewers, and the system decision is sent via callback once the reviewers make a final decision.

The Document Verification can fail for multiple reasons:

  1. A spoof was detected on the submitted selfie - if we believe the selfie has been tampered with or is a picture of a picture, the document verification will fail.

  2. The submitted selfie does not match the face on the document - if the selfie and face on the document do not match, the document verification job will fail.

  3. The OCR extracted information, and the decoded MRZ information do not match, e.g., the name encoded in the MRZ does not match the name that can be seen on the document.

  4. The document image or selfie is blurry.

  5. Some known visible security features on the document are missing, e.g. the coat of arms on a Nigerian driver’s license.

  6. The ID type specified by the user does not match our system’s classification of the document type.

  7. The data on the document does not match the issuer's records

  8. The ID number on the document was not found in the issuer's database

Result Codes and Result Texts

Result codes detail what the current (or final) result of a job is. Result Codes for all jobs fall into one of two categories:

  1. Approved (or Pass) This means that all applicable Actions passed and the overall job was approved.

  2. Rejected (or Fail) This means that one or more of the applicable Actions for the job failed, and thus, the overall job was rejected according to Smile ID standards.

General Failures Result Codes and Texts

This means no further processing is possible on the job. General failures occur when a job cannot be submitted due to a logical/technical issue. These jobs do not appear in the portal or have a Smile Job ID.

Code

Text

Description

Category

0001

Data Invalid

Uploaded zip is corrupted

Rejected

0001

Data Invalid - Images corrupt or not present

info.json lists an image file that was not included in the zip

Rejected

0001

ID Card image not provided

There was no ID card image submitted with the job

Rejected

0001

System Error

A system error occurred

Rejected

0903

Zip Corrupt

The uploaded Zip file is corrupted.

Rejected

2405

Error - "You are not authorised to do that" *

An invalid signature was used to sign the request.

-

2314

Error - No Zip File Received

No Zip files was uploaded.

-

2203

Error - Invalid JSON

The info.json file in the Zip is not properly structured. Ensure all keys are present and properly named.

-

2213

Error - A required parameter is missing

-

2204

Error - A parameter is of the wrong data type

-

2205

Error - You are not authorised to do that. *

An invalid signature was used to sign the request. Please ensure you are using the correct signature for the environment (ie: sandbox vs production)

-

2220

You have not completed your KYC.

-

2212

Error - Invalid job type

An invalid value was inputted in the job_type key. Change the value to 6.

-

2209

Error - Wrong user id. This user is already enrolled with user_id

An existing user_id was inputted. Enter a unique user id.

2215

Error - Job already exists for job_id

An existing job_id was inputted. Enter a unique job id.

-

* Read more on how to troubleshoot this error here

Product-Specific Result Codes and Texts

Code
Text
Description
Category

0810

Document Verified

Images matched, no spoof was detected on Selfie and the document is valid.

Approved

0811

Unable to Verify Document - reason

Document image was usable but document verification failed due to any of the following reasons: - Document is expired - The selfie did not match the photo on document - Selfie failed liveness checks - Some security features were missing on the document - The information on document is inconsistent i.e. the MRZ information did not match the OCR'ed information - A wrong document type was uploaded - The document data does not match the issuer's records - The id number on the document was not found in the issuer's database

Rejected

0812

Unable to verify Document - reason

Document verification failed because the document image is unusable or an invalid document image was uploaded e.g. work ID card

Rejected

0816

Unable to verify Document - Unsupported Document

Provided document is not supported for KYC i.e. document is one of the following: - Minor's Passport - Carry Permit - Hunting Permit - Sex Offender ID - SIM Card

Rejected

1014

Unsupported ID Type

Rejected

Running in Sandbox

Document verification can be tested in our sandbox environment. However, you will get a simulated response. In the sandbox, the document verification job is processed as described below:

  • The selfie is compared to the photo on the identity document, if both images do not match, the document verification job fails

  • The authenticity of the document is not confirmed, and we will always return the document as being valid

  • The values you parse in id_type and country are not checked with the supported countries and IDs

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