ID – MRZ strip verification Portuguese residence permit online

Are you unsure of the validity of an ID presented to you, or do you need to check the validity of an ID as part of a business process?

Our product allows you to analyze the information on the Portuguese MRZ residence permit strip, as well as the security keys validating their authenticity.

How does the MRZ online Portuguese residence permit strip reader work?

After validation of your purchase, you will receive an email with the credentials to connect to our identity web application (check in spam a few minutes after purchase if you have not received the activation email).

You’ll then have access to the various tools available, including identity document verification: simply send the document from the web application, and the results are available immediately.

Full details can be found on the Suite web identité product page.

Professionals, do you need validation by API or web application?

We also offer a service for verifying all proofs of identity or resources via API and our web application.

You can find all the details on these links :

• Identity API
• Resources API

How are the results presented?

The results of the analysis are available for download from the history of the identity suite in PDF / JSON / XML format:

What document formats are accepted?

You can send your documents as jpg / jpeg / png images, or as PDF files.

Scans/photos don’t need to be cropped or retouched: they’re detected automatically.

You can send the front and back of the part on the same scan in any order (front first and back underneath, or vice versa): they will be sorted and recognition will be trouble-free.

The same applies to inclination: scans may be a little tilted/misaligned: the MRZ strip on the Portuguese residence permit will be recognized by our service!

What is the MRZ (Machine Readable Zone) strip?

A machine-readable zone, or machine-readable zone, is an area on an official document reserved for reading, identifying and validating the document.

For example, documents such as passports, Portuguese national identity cards, residence permits and driving licenses can or must include an optical reading zone, depending on the country and version of the document.

It is located at the bottom of identity documents: it contains all the information on the document, with security keys to check that it is authentic and has not been altered.

The information it contains varies according to the type of document.

How is it made up?

The MRZ strip for residence permits issued from 2011 onwards features three lines of text, each containing alphanumeric characters.

For more detailed information, please consult our article at the following address: Secure file – Checking the MRZ band on a residence permit.

What data is extracted from the MRZ strip on the Portuguese residence permit?

The data extracted from the MRZ band are as follows:

• Front row:

1. Document Type: 2 characters, code indicating the type of document, represented by the letters “IR”.
2. Issuing country: 3 characters, the ISO 3166-1 alpha-3 code of the issuing country. For France, this is “FRA”.
3. Card number : 9 characters, unique card number.
4. Control key: 1 character, control key for the card’s unique number.
5. Separator: 1 character, ” < ” to separate the first part of the information from the second part.
6. Foreign number : 10 digits, foreign number represented by digits only, 9 or 10.
7. End of line : 4 or 5 digits, chevrons ” < ” to complete the line.

• Second line:

1. Date of birth : 6 characters, year, month and day of birth in YYMMDD format.
2. Control key: 1 character, control key for date of birth.
3. Gender: 1 character, “M” for male, “F” for female.
4. Expiry date: 6 digits, card expiry date in YYMMDD format.
5. Control key: 1 character, expiry date control key.
6. Country code: 3 characters, ISO 3166-1 alpha-3 code of the holder’s nationality (SEN in the example above).
7. End of line : 11 characters, chevrons to complete the line.
8. Control key: 1 character, control key for the concatenation of characters in lines 1 and 2.

• Third line:

1. Holder’s surname and first names: holder’s surname and first names, beginning with the family name followed by the first name. The surname and first name are separated by two characters. <. In the case of a compound surname, a compound first name or several first names, they are separated by the character <. Spaces and apostrophes are replaced by the character < and the name is truncated to 30 characters if necessary, and any accents on the letters are removed. The line is then completed with the <.

Will I be charged if the information is not correctly extracted from the MRZ strip of the Portuguese residence permit?

The answer is no! Only a document that has been correctly recognized is billable!

If the attachment is not detected or is detected incorrectly, you will not be billed: only a successful analysis will be deducted from your verification credits.

Personal data

You can delete all data once the report has been downloaded: simply delete the analysis from the web interface history!

Data is also automatically deleted after 3 months.

You can find detailed information about personal data on our dedicated page: Privacy policy.

Terms and conditions of sale

You can find the details of our general terms and conditions of sale at the following address: TrustDocHub T&Cs.