Authenticity Checks

Overview
The authenticityCheck section of the API response is critical for assessing the security features and integrity of identification documents. It includes various checks to ensure the authenticity of the document by examining security texts, image patterns, embedded photos, barcodes, and electronic liveness features.
Explanation of Values
: Indicates that the authenticity feature or check has passed.
: Indicates that the authenticity feature or check has failed.
: Indicates that the check was not applicable or could not be performed.
Authenticity Checks
Below is the detailed breakdown of each parameter within the authenticityCheck object:
Parameter
Sub-Parameter
Data Type
Possible Values
Description
authenticityCheck
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Object
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Container for all authenticity verification results.
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ocrSecurityText
Object
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Details results from OCR security text checks.
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ElementResult
Boolean
True, False, None
Result of the OCR text check.
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ElementDiagnose
String
Various
Diagnosis based on OCR text check, e.g., text color discrepancies.
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imagePattern
Object
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Results from image pattern checks.
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ElementResult
Boolean
True, False, None
Result of the image pattern check.
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ElementDiagnose
String
Various
Diagnosis of image pattern integrity.
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ElementType
String
Various
Type of pattern checked, e.g., blank areas, embedded images.
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Image
String
URL
URL to the image under scrutiny.
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EtalonImage
String
URL
URL to the reference image for comparison.
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photoEmbedType
Object
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Results from checks on the embedded photo type.
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ElementResult
Boolean
True, False, None
Result of the photo embedding check.
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ElementDiagnose
String
Various
Diagnosis based on the type of photo embedding.
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ElementType
String
Various
Type of photo embedding checked.
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liveness
Object
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Results from document liveness checks.
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ElementResult
Boolean
True, False, None
Result of the liveness check.
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ElementDiagnose
String
Various
Diagnosis of document liveness features.
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ElementType
String
Various
Type of liveness feature checked.
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barcodeFormatCheck
Object
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Results from barcode format verification.
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ElementResult
Boolean
True, False, None
Result of the barcode format check.
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ElementDiagnose
String
Various
Diagnosis based on the barcode format check.
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ElementType
String
Various
Type of barcode checked.
Usage and Implications
These checks are designed to detect and diagnose potential security issues related to document authenticity, such as forged text, manipulated photos, incorrect barcode formats, and compromised document features. The results can trigger additional verification steps, requests for other forms of identification, or outright rejection of suspicious documents.
Example
If the ocrSecurityText check returns False with a diagnosis of "TEXT_COLOR_SHOULD_BE_BLUE", it indicates that the text colour on the document does not match expected security specifications, suggesting possible tampering or forgery. This would typically prompt a deeper investigation into the document's authenticity or request additional proof of identity from the user.
This comprehensive approach ensures that only genuine documents pass through the verification process, maintaining the integrity of the system and protecting against identity fraud.
Table of Authenticity Check Objects
This table provides an overview of the main security feature checks that might be performed during the document verification process, detailing the types of checks and their specific purposes which will be the main object names inside authenticity checks.
Table of Security Feature Checks - Object Names
Security Feature Name
Description
UV_LUMINESCENCE
Checks the document's luminescence under UV light to verify the presence of security inks.
IR_B900
Verifies the contrast of B900 ink in the Machine Readable Zone (MRZ) under infrared light, essential for passport and ID authentication.
IMAGE_PATTERN
Examines the presence or absence of specific image patterns, including their position, shape, and color, to detect tampering or alterations.
AXIAL_PROTECTION
Confirms the integrity of laminate and other protective layers under axial lighting, ensuring the document's physical security features are intact.
UV_FIBERS
Detects the presence of protective fibers that are visible under UV light, typically used in high-security documents to prevent forgery.
IR_VISIBILITY
Checks for the visibility of document elements under infrared light, which can reveal modifications not visible under normal light.
OCR_SECURITY_TEXT
Uses Optical Character Recognition to compare text fields under UV light against other sources, verifying text integrity and detecting alterations.
IPI
Visualizes Invisible Personal Information (IPI), which can contain hidden security features or personal data embedded within the document.
PHOTO_EMBED_TYPE
Assesses how the owner's photo is embedded in the document, whether printed directly or affixed, a critical factor in photo ID security.
OVI
Checks Optical Variable Ink, which changes color when viewed from different angles, a sophisticated anti-counterfeiting feature.
HOLOGRAMS
Verifies the presence and integrity of holograms, used as a security measure against photocopying and digital tampering.
PHOTO_AREA
Conducts an advanced check of the owner's photo area, assessing photo shape, size, and position to ensure compliance with issuing standards.
PORTRAIT_COMPARISON
Compares the printed portrait against other images (such as chip or live capture) to verify identity and detect substitution or tampering.
BARCODE_FORMAT_CHECK
Evaluates the barcode format, including metadata, data content, and structural integrity, ensuring it meets specified standards.
KINEGRAM
Verifies kinegrams, which are dynamic images that appear to move or change as the viewing angle changes, enhancing document security.
LETTER_SCREEN
Checks for letter screen patterns, which are fine prints and details that cannot be accurately reproduced through scanning or photocopying.
HOLOGRAM_DETECTION
Detects and validates the presence and condition of holograms, ensuring they have not been altered or removed.
FINGERPRINT_COMPARISON
Compares fingerprints on the document with registered or live captured fingerprints to verify identity and prevent fraud.
LIVENESS
Conducts checks to verify that the document or its features are presented in a live session, preventing the use of replicas or modified copies.
EXTENDED_OCR_CHECK
Performs a detailed OCR check beyond basic text recognition, analyzing text layout, font consistency, and other advanced features.
EXTENDED_MRZ_CHECK
Conducts a comprehensive check of the Machine Readable Zone, assessing formatting, encoding standards, and error correction measures.
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Table of elementDiagnose - Authenticity Check Types
Contains identificators that determine the result of the text field comparison from the different sources.
Diagnostic Code
Description
UNKNOWN
The outcome of the check is indeterminate.
PASS
The check completed successfully without any issues.
INVALID_INPUT_DATA
Input data provided is incorrect or insufficient for processing.
INTERNAL_ERROR
An internal error occurred within the system during processing.
EXCEPTION_IN_MODULE
An unexpected exception occurred within a processing module.
UNCERTAIN_VERIFICATION
Verification results are inconclusive.
NECESSARY_IMAGE_NOT_FOUND
Required image for the check was not found.
PHOTO_SIDES_NOT_FOUND
Essential sides of the photo required for verification are missing.
INVALID_CHECKSUM
The checksum for the data did not validate correctly.
SYNTAX_ERROR
Error in the syntax of data or query.
LOGIC_ERROR
Logical error in process or workflow.
SOURCES_COMPARISON_ERROR
Errors encountered while comparing data from different sources.
FIELDS_COMPARISON_LOGIC_ERROR
Logical errors in the comparison of document fields.
INVALID_FIELD_FORMAT
Field formats are invalid or unrecognized.
TRUE_LUMINESCENCE_ERROR
Incorrect luminescence properties detected, indicating potential forgery.
FALSE_LUMINESCENCE_ERROR
False luminescence detected, suggesting tampering.
FIXED_PATTERN_ERROR
The fixed pattern on the document does not match expected standards.
LOW_CONTRAST_IN_IR_LIGHT
Document shows low contrast under infrared light.
INCORRECT_BACKGROUND_LIGHT
Background lighting conditions are inappropriate for verification.
BACKGROUND_COMPARISON_ERROR
Errors in comparing the document background to standards.
INCORRECT_TEXT_COLOR
Text color on the document does not match expected standards.
PHOTO_FALSE_LUMINESCENCE
Detected unnatural luminescence in the photo area, indicating potential fraud.
TOO_MUCH_SHIFT
The document or a part of it has shifted excessively, possibly due to manipulation.
CONTACT_CHIP_TYPE_MISMATCH
The type of contact chip does not match the expected type, suggesting discrepancies.
FIBERS_NOT_FOUND
Security fibers expected in the document are missing, indicating potential counterfeiting.
TOO_MANY_OBJECTS
An excessive number of objects detected in the document that should not exist, suggesting alterations.
SPECKS_IN_UV
Specks detected under UV light examination, which could indicate tampering.
TOO_LOW_RESOLUTION
The document's image resolution is too low for accurate analysis, potentially hiding details.
INVISIBLE_ELEMENT_PRESENT
An element that should be invisible under normal conditions is visible, indicating a flaw.
VISIBLE_ELEMENT_ABSENT
An element that should be visible is missing, suggesting potential document tampering.
ELEMENT_SHOULD_BE_COLORED
An element that should have colour is not colored, indicating a printing error or manipulation.
ELEMENT_SHOULD_BE_GRAYSCALE
An element that should be grayscale is incorrectly colored, possibly due to printing issues.
PHOTO_WHITE_IR_DONT_MATCH
Discrepancies between the photo under white light and infrared light suggest tampering.
UV_DULL_PAPER_MRZ
The MRZ area of the paper is dull under UV light examination, which may indicate issues with document authenticity.
FALSE_LUMINESCENCE_IN_MRZ
Detected false luminescence in the MRZ area, suggesting potential security feature tampering.
UV_DULL_PAPER_PHOTO
The photo area of the paper is dull under UV light examination, potentially indicating counterfeit material.
UV_DULL_PAPER_BLANK
Blank areas of the paper are dull under UV light, possibly indicating a lack of proper security coatings.
UV_DULL_PAPER_ERROR
General error related to UV dullness in paper, indicating possible production or authenticity issues.
FALSE_LUMINESCENCE_IN_BLANK
False luminescence detected in blank areas of the document, suggesting unauthorized material or ink use.
BAD_AREA_IN_AXIAL
Bad area detected during axial light examination, potentially due to improper lamination or damage.
FALSE_IP_PARAMETERS
Incorrect intellectual property parameters found, suggesting non-compliance or counterfeit details.
FIELD_POS_CORRECTOR_HIGHLIGHT_IR
Issues detected with field position under IR highlighting, indicating potential alterations.
FIELD_POS_CORRECTOR_GLARES_IN_PHOTO_AREA
Glares detected in the photo area during field position correction, affecting image clarity.
FIELD_POS_CORRECTOR_PHOTO_REPLACED
Indications that the photo has been replaced, suggesting document tampering or identity fraud.
FIELD_POS_CORRECTOR_LANDMARKS_CHECK_ERROR
Errors in checking facial landmarks during field position correction, affecting biometric verification.
FIELD_POS_CORRECTOR_FACE_PRESENCE_CHECK_ERROR
Face presence check failed during field position correction, indicating possible photo substitution.
FIELD_POS_CORRECTOR_FACE_ABSENCE_CHECK_ERROR
Face absence erroneously detected during field position correction, potentially due to poor image quality or sensor error.
OVI_IR_INVISIBLE
Optical Variable Ink (OVI) is invisible under infrared light, suggesting a lack of proper ink usage.
OVI_INSUFFICIENT_AREA
The area covered by Optical Variable Ink is insufficient, indicating potential cutting corners in document security features.
OVI_COLOR_INVARIABLE
The color of the OVI does not change under different viewing angles, indicating a potential issue with the ink quality.
OVI_BAD_COLOR_FRONT
The front color of the OVI is incorrect, suggesting incorrect application or ink quality issues.
OVI_BAD_COLOR_SIDE
The side color of the OVI is incorrect, which may point to issues with the application process or ink quality.
OVI_WIDE_COLOR_SPREAD
The color spread of the OVI is too wide, potentially indicating a dispersion or application error.
OVI_BAD_COLOR_PERCENT
The percentage of color change in the OVI does not meet the specified standards, suggesting potential fraud.
HOLOGRAM_ELEMENT_ABSENT
A required hologram element is absent from the document, indicating a critical missing security feature.
HOLOGRAM_SIDE_TOP_IMAGES_ABSENT
Top images expected on the hologram side are absent, indicating a missing security feature.
HOLOGRAM_ELEMENT_PRESENT
The required hologram element is present, confirming the security feature.
HOLOGRAM_FRAMES_IS_ABSENT
Frames that should surround the hologram are missing, suggesting potential tampering.
HOLOGRAM_HOLO_FIELD_IS_ABSENT
The holographic field expected on the document is absent, indicating a crucial security flaw.
PHOTO_PATTERN_INTERRUPTED
The continuous pattern in the photo area is interrupted, which could indicate tampering.
PHOTO_PATTERN_SHIFTED
The pattern in the photo area has shifted from its expected position, suggesting manipulation.
PHOTO_PATTERN_DIFFERENT_COLORS
Colors in the photo pattern do not match expected standards, indicating a possible forgery.
PHOTO_PATTERN_IR_VISIBLE
The photo pattern, which should not be visible under infrared light, is detected, suggesting incorrect materials.
PHOTO_PATTERN_NOT_INTERSECT
Patterns that should intersect do not, indicating a misalignment or editing.
PHOTO_SIZE_IS_WRONG
The size of the photo does not meet the specified dimensions, indicating potential fraud.
PHOTO_PATTERN_INVALID_COLOR
The color of the photo pattern is incorrect, suggesting the use of non-standard materials.
PHOTO_PATTERN_SHIFTED_VERT
The photo pattern is vertically shifted, which could indicate physical tampering.
PHOTO_PATTERN_PATTERN_NOT_FOUND
The expected pattern in the photo area is not found, indicating a missing security element.
PHOTO_PATTERN_DIFFERENT_LINES_THICKNESS
Line thickness in the photo pattern varies, which should not occur if genuine.
PHOTO_IS_NOT_RECTANGLE
The photo is not in the standard rectangular shape, suggesting alteration.
PHOTO_CORNERS_IS_WRONG
The corners of the photo do not match the expected specifications, indicating possible tampering.
DOCUMENT_IS_CANCELLING
Indicates that the document has been marked as cancelled, typically found in voided or invalidated documents.
TEXT_COLOR_SHOULD_BE_BLUE
Text that should be blue is incorrectly colored, suggesting a printing error or manipulation.
TEXT_COLOR_SHOULD_BE_GREEN
Green text is found to be incorrectly colored, indicating potential forgery.
TEXT_COLOR_SHOULD_BE_RED
Red text is incorrectly presented, which could indicate tampering.
TEXT_SHOULD_BE_BLACK
Text that should be black is found in another color, suggesting a critical error in document production.
BARCODE_WAS_READ_WITH_ERRORS
The barcode could not be read correctly, indicating potential issues with its formatting or damage.
BARCODE_DATA_FORMAT_ERROR
The data format of the barcode does not match expected specifications, indicating potential manipulation.
BARCODE_SIZE_PARAMS_ERROR
The size parameters of the barcode do not meet the required standards, suggesting a discrepancy.
NOT_ALL_BARCODES_READ
Not all barcodes on the document could be read, which may indicate damage or intentional obfuscation.
GLARES_IN_BARCODE_AREA
Glares detected in the barcode area interfere with reading, potentially due to improper document handling or printing.
PORTRAIT_COMPARISON_PORTRAITS_DIFFER
Differences detected between portraits that should be identical, suggesting possible fraud.
PORTRAIT_COMPARISON_NO_SERVICE_REPLY
The service expected to reply to a portrait comparison did not respond, hindering verification.
PORTRAIT_COMPARISON_SERVICE_ERROR
An error occurred within the portrait comparison service, affecting the outcome.
PORTRAIT_COMPARISON_NOT_ENOUGH_IMAGES
Insufficient images available for effective portrait comparison, limiting verification capabilities.
PORTRAIT_COMPARISON_NO_LIVE_PHOTO
No live photo available for comparison against the document portrait, necessary for certain checks.
PORTRAIT_COMPARISON_NO_SERVICE_LICENSE
The license for the portrait comparison service is absent or expired, preventing comparison.
PORTRAIT_COMPARISON_NO_PORTRAIT_DETECTED
No portrait could be detected for comparison purposes, suggesting a potential issue with the document or image quality.
MOBILE_IMAGES_UNSUITABLE_LIGHT_CONDITIONS
Light conditions for images taken with a mobile device are unsuitable, affecting image quality and verification.
MOBILE_IMAGES_WHITE_UV_NO_DIFFERENCE
No difference detected between images under white and UV light, which is unusual and may indicate issues.
FINGERPRINTS_COMPARISON_MISMATCH
Mismatch found during fingerprint comparison, suggesting discrepancies between registered data and the document.
HOLO_PHOTO_FACE_NOT_DETECTED
No face detected in the holographic photo, which is necessary for certain security verifications.
HOLO_PHOTO_FACE_COMPARISON_FAILED
The face comparison within the holographic photo failed, suggesting discrepancies or poor quality.
HOLO_PHOTO_GLARE_IN_CENTER_ABSENT
Expected glare in the center of a holographic photo is absent, indicating a potential security feature issue.
HOLO_PHOTO_HOLO_ELEMENT_SHAPE_ERROR
The shape of the holographic element does not match specifications, suggesting tampering or error.
HOLO_PHOTO_ALGORITHMS_STEPS_ERROR
Errors detected in the algorithmic steps used for analyzing holographic photos, affecting the outcome.
HOLO_PHOTO_HOLO_AREAS_NOT_LOADED
Holographic areas in the photo did not load correctly, potentially due to file corruption or loading errors.
HOLO_PHOTO_FINISHED_BY_TIMEOUT
The holographic photo analysis timed out before completion, suggesting processing issues.
HOLO_PHOTO_DOCUMENT_OUTSIDE_FRAME
The document is positioned outside the frame in the holographic photo, indicating potential misalignment or improper handling.
LIVENESS_DEPTH_CHECK_FAILED
Depth check for liveness verification failed, suggesting the document may not be genuine.
MRZ_QUALITY_WRONG_SYMBOL_POSITION
Symbols in the MRZ are positioned incorrectly, suggesting potential errors in document printing.
MRZ_QUALITY_WRONG_BACKGROUND
The background of the MRZ does not meet the specified quality standards, potentially affecting readability.
MRZ_QUALITY_WRONG_MRZ_WIDTH
The width of the MRZ is incorrect, which could indicate a printing or specification error.
MRZ_QUALITY_WRONG_MRZ_HEIGHT
The height of the MRZ does not match required specifications, suggesting a potential error in production.
MRZ_QUALITY_WRONG_LINE_POSITION
Lines in the MRZ are positioned incorrectly, potentially due to printing errors.
MRZ_QUALITY_WRONG_FONT_TYPE
The font type used in the MRZ is incorrect, which may indicate unauthorized production or tampering.
OCR_QUALITY_TEXT_POSITION
The position of text analyzed using OCR does not meet quality standards, affecting data extraction accuracy.
OCR_QUALITY_INVALID_FONT
The font used in OCR-processed text is invalid, suggesting discrepancies or errors.
OCR_QUALITY_INVALID_BACKGROUND
The background for OCR-processed text is invalid, potentially affecting text recognition.
LASINK_INVALID_LINES_FREQUENCY
The frequency of lines in LASINK security features does not match expected standards, indicating potential issues.
DOC_LIVENESS_ELECTRONIC_DEVICE_DETECTED
Electronic device detected during document liveness checks, suggesting the presence of a fake or modified document.
DOC_LIVENESS_INVALID_BARCODE_BACKGROUND
The background for barcode areas during liveness checks does not meet standards, indicating potential tampering.
CHD_ICAO_IDB_BASE32_ERROR
Error in processing CHD ICAO IDB information encoded in BASE32, affecting data integrity.
CHD_ICAO_IDB_ZIPPED_ERROR
Zipped data in CHD ICAO IDB cannot be processed correctly, suggesting corruption or errors.
CHD_ICAO_IDB_MESSAGE_ZONE_EMPTY
The message zone in CHD ICAO IDB is empty, which is
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Table of elementType - Authenticity Check Types
Contains identifiers determining type of features for a document authenticity checks.
Name
Description
BLANK
Checks for unmodified blank elements in the document.
FILL
Verifies the integrity of personalization elements.
PHOTO
Assesses the photo for tampering or substitution.
MRZ
Verifies the machine-readable zone for alterations.
FALSE_LUMINESCENCE
Detects unnatural luminescence from the document.
HOLO_SIMPLE
Checks for the presence and integrity of static holograms.
HOLO_VERIFY_STATIC
Verifies static holograms against known patterns.
HOLO_VERIFY_MULTI_STATIC
Multiple static hologram verification.
HOLO_VERIFY_DYNAMIC
Dynamic hologram verification for movement and light changes.
PATTERN_NOT_INTERRUPTED
Ensures patterns on the document are continuous without breaks.
PATTERN_NOT_SHIFTED
Checks for shifts in the document's printed patterns.
PATTERN_SAME_COLORS
Verifies color consistency in patterned areas.
PATTERN_IR_INVISIBLE
Checks for pattern visibility under infrared light.
PHOTO_SIZE_CHECK
Verifies the size of the photo against expected dimensions.
PORTRAIT_COMPARISON
Compares the document portrait against other images for consistency.
BARCODE
Validates barcode format and data integrity.
OCR
Optical character recognition accuracy check.
LIVENESS_DEPTH
Verifies depth in portrait images to detect overlays or paper copies.
MICRO_TEXT
Checks for the presence and accuracy of microtext.
FLUORESCENT_OBJECT
Detects fluorescent markers used in secure document printing.
LANDMARK_CHECK
Assesses facial landmarks in the document's portrait for consistency.
FACE_PRESENCE
Checks for the presence of a facial image.
LIVENESS_SCREEN_CAPTURE
Detects attempts to use a screen capture as a live image during verification.
LIVENESS_ELECTRONIC_DEVICE
Checks for signs of electronic device use in presenting the document image.
CHECK_DIGITAL_SIGNATURE
Validates the digital signature embedded in the document.
CONTACT_CHIP_CLASSIFICATION
Contact chip check, verifying chip presence and function.
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Table of elementResult Outcomes:
This table succinctly describes the possible outcomes of the elementResult in the context of document security checks.
Parameter
Description
True
The security check passed, confirming the document's authenticity.
False
The security check failed, indicating potential issues or tampering.
None
The security check was not applicable or could not be executed.
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Parameter	Sub-Parameter	Data Type	Possible Values	Description
authenticityCheck		Object		Container for all authenticity verification results.
	ocrSecurityText	Object		Details results from OCR security text checks.
	ElementResult	Boolean	True, False, None	Result of the OCR text check.
	ElementDiagnose	String	Various	Diagnosis based on OCR text check, e.g., text color discrepancies.
	imagePattern	Object		Results from image pattern checks.
	ElementResult	Boolean	True, False, None	Result of the image pattern check.
	ElementDiagnose	String	Various	Diagnosis of image pattern integrity.
	ElementType	String	Various	Type of pattern checked, e.g., blank areas, embedded images.
	Image	String	URL	URL to the image under scrutiny.
	EtalonImage	String	URL	URL to the reference image for comparison.
	photoEmbedType	Object		Results from checks on the embedded photo type.
	ElementResult	Boolean	True, False, None	Result of the photo embedding check.
	ElementDiagnose	String	Various	Diagnosis based on the type of photo embedding.
	ElementType	String	Various	Type of photo embedding checked.
	liveness	Object		Results from document liveness checks.
	ElementResult	Boolean	True, False, None	Result of the liveness check.
	ElementDiagnose	String	Various	Diagnosis of document liveness features.
	ElementType	String	Various	Type of liveness feature checked.
	barcodeFormatCheck	Object		Results from barcode format verification.
	ElementResult	Boolean	True, False, None	Result of the barcode format check.
	ElementDiagnose	String	Various	Diagnosis based on the barcode format check.
	ElementType	String	Various	Type of barcode checked.

Security Feature Name	Description
UV_LUMINESCENCE	Checks the document's luminescence under UV light to verify the presence of security inks.
IR_B900	Verifies the contrast of B900 ink in the Machine Readable Zone (MRZ) under infrared light, essential for passport and ID authentication.
IMAGE_PATTERN	Examines the presence or absence of specific image patterns, including their position, shape, and color, to detect tampering or alterations.
AXIAL_PROTECTION	Confirms the integrity of laminate and other protective layers under axial lighting, ensuring the document's physical security features are intact.
UV_FIBERS	Detects the presence of protective fibers that are visible under UV light, typically used in high-security documents to prevent forgery.
IR_VISIBILITY	Checks for the visibility of document elements under infrared light, which can reveal modifications not visible under normal light.
OCR_SECURITY_TEXT	Uses Optical Character Recognition to compare text fields under UV light against other sources, verifying text integrity and detecting alterations.
IPI	Visualizes Invisible Personal Information (IPI), which can contain hidden security features or personal data embedded within the document.
PHOTO_EMBED_TYPE	Assesses how the owner's photo is embedded in the document, whether printed directly or affixed, a critical factor in photo ID security.
OVI	Checks Optical Variable Ink, which changes color when viewed from different angles, a sophisticated anti-counterfeiting feature.
HOLOGRAMS	Verifies the presence and integrity of holograms, used as a security measure against photocopying and digital tampering.
PHOTO_AREA	Conducts an advanced check of the owner's photo area, assessing photo shape, size, and position to ensure compliance with issuing standards.
PORTRAIT_COMPARISON	Compares the printed portrait against other images (such as chip or live capture) to verify identity and detect substitution or tampering.
BARCODE_FORMAT_CHECK	Evaluates the barcode format, including metadata, data content, and structural integrity, ensuring it meets specified standards.
KINEGRAM	Verifies kinegrams, which are dynamic images that appear to move or change as the viewing angle changes, enhancing document security.
LETTER_SCREEN	Checks for letter screen patterns, which are fine prints and details that cannot be accurately reproduced through scanning or photocopying.
HOLOGRAM_DETECTION	Detects and validates the presence and condition of holograms, ensuring they have not been altered or removed.
FINGERPRINT_COMPARISON	Compares fingerprints on the document with registered or live captured fingerprints to verify identity and prevent fraud.
LIVENESS	Conducts checks to verify that the document or its features are presented in a live session, preventing the use of replicas or modified copies.
EXTENDED_OCR_CHECK	Performs a detailed OCR check beyond basic text recognition, analyzing text layout, font consistency, and other advanced features.
EXTENDED_MRZ_CHECK	Conducts a comprehensive check of the Machine Readable Zone, assessing formatting, encoding standards, and error correction measures.

Diagnostic Code	Description
UNKNOWN	The outcome of the check is indeterminate.
PASS	The check completed successfully without any issues.
INVALID_INPUT_DATA	Input data provided is incorrect or insufficient for processing.
INTERNAL_ERROR	An internal error occurred within the system during processing.
EXCEPTION_IN_MODULE	An unexpected exception occurred within a processing module.
UNCERTAIN_VERIFICATION	Verification results are inconclusive.
NECESSARY_IMAGE_NOT_FOUND	Required image for the check was not found.
PHOTO_SIDES_NOT_FOUND	Essential sides of the photo required for verification are missing.
INVALID_CHECKSUM	The checksum for the data did not validate correctly.
SYNTAX_ERROR	Error in the syntax of data or query.
LOGIC_ERROR	Logical error in process or workflow.
SOURCES_COMPARISON_ERROR	Errors encountered while comparing data from different sources.
FIELDS_COMPARISON_LOGIC_ERROR	Logical errors in the comparison of document fields.
INVALID_FIELD_FORMAT	Field formats are invalid or unrecognized.
TRUE_LUMINESCENCE_ERROR	Incorrect luminescence properties detected, indicating potential forgery.
FALSE_LUMINESCENCE_ERROR	False luminescence detected, suggesting tampering.
FIXED_PATTERN_ERROR	The fixed pattern on the document does not match expected standards.
LOW_CONTRAST_IN_IR_LIGHT	Document shows low contrast under infrared light.
INCORRECT_BACKGROUND_LIGHT	Background lighting conditions are inappropriate for verification.
BACKGROUND_COMPARISON_ERROR	Errors in comparing the document background to standards.
INCORRECT_TEXT_COLOR	Text color on the document does not match expected standards.
PHOTO_FALSE_LUMINESCENCE	Detected unnatural luminescence in the photo area, indicating potential fraud.
TOO_MUCH_SHIFT	The document or a part of it has shifted excessively, possibly due to manipulation.
CONTACT_CHIP_TYPE_MISMATCH	The type of contact chip does not match the expected type, suggesting discrepancies.
FIBERS_NOT_FOUND	Security fibers expected in the document are missing, indicating potential counterfeiting.
TOO_MANY_OBJECTS	An excessive number of objects detected in the document that should not exist, suggesting alterations.
SPECKS_IN_UV	Specks detected under UV light examination, which could indicate tampering.
TOO_LOW_RESOLUTION	The document's image resolution is too low for accurate analysis, potentially hiding details.
INVISIBLE_ELEMENT_PRESENT	An element that should be invisible under normal conditions is visible, indicating a flaw.
VISIBLE_ELEMENT_ABSENT	An element that should be visible is missing, suggesting potential document tampering.
ELEMENT_SHOULD_BE_COLORED	An element that should have colour is not colored, indicating a printing error or manipulation.
ELEMENT_SHOULD_BE_GRAYSCALE	An element that should be grayscale is incorrectly colored, possibly due to printing issues.
PHOTO_WHITE_IR_DONT_MATCH	Discrepancies between the photo under white light and infrared light suggest tampering.
UV_DULL_PAPER_MRZ	The MRZ area of the paper is dull under UV light examination, which may indicate issues with document authenticity.

FALSE_LUMINESCENCE_IN_MRZ	Detected false luminescence in the MRZ area, suggesting potential security feature tampering.
UV_DULL_PAPER_PHOTO	The photo area of the paper is dull under UV light examination, potentially indicating counterfeit material.
UV_DULL_PAPER_BLANK	Blank areas of the paper are dull under UV light, possibly indicating a lack of proper security coatings.
UV_DULL_PAPER_ERROR	General error related to UV dullness in paper, indicating possible production or authenticity issues.
FALSE_LUMINESCENCE_IN_BLANK	False luminescence detected in blank areas of the document, suggesting unauthorized material or ink use.
BAD_AREA_IN_AXIAL	Bad area detected during axial light examination, potentially due to improper lamination or damage.
FALSE_IP_PARAMETERS	Incorrect intellectual property parameters found, suggesting non-compliance or counterfeit details.
FIELD_POS_CORRECTOR_HIGHLIGHT_IR	Issues detected with field position under IR highlighting, indicating potential alterations.
FIELD_POS_CORRECTOR_GLARES_IN_PHOTO_AREA	Glares detected in the photo area during field position correction, affecting image clarity.
FIELD_POS_CORRECTOR_PHOTO_REPLACED	Indications that the photo has been replaced, suggesting document tampering or identity fraud.
FIELD_POS_CORRECTOR_LANDMARKS_CHECK_ERROR	Errors in checking facial landmarks during field position correction, affecting biometric verification.
FIELD_POS_CORRECTOR_FACE_PRESENCE_CHECK_ERROR	Face presence check failed during field position correction, indicating possible photo substitution.
FIELD_POS_CORRECTOR_FACE_ABSENCE_CHECK_ERROR	Face absence erroneously detected during field position correction, potentially due to poor image quality or sensor error.
OVI_IR_INVISIBLE	Optical Variable Ink (OVI) is invisible under infrared light, suggesting a lack of proper ink usage.
OVI_INSUFFICIENT_AREA	The area covered by Optical Variable Ink is insufficient, indicating potential cutting corners in document security features.
OVI_COLOR_INVARIABLE	The color of the OVI does not change under different viewing angles, indicating a potential issue with the ink quality.
OVI_BAD_COLOR_FRONT	The front color of the OVI is incorrect, suggesting incorrect application or ink quality issues.
OVI_BAD_COLOR_SIDE	The side color of the OVI is incorrect, which may point to issues with the application process or ink quality.
OVI_WIDE_COLOR_SPREAD	The color spread of the OVI is too wide, potentially indicating a dispersion or application error.
OVI_BAD_COLOR_PERCENT	The percentage of color change in the OVI does not meet the specified standards, suggesting potential fraud.
HOLOGRAM_ELEMENT_ABSENT	A required hologram element is absent from the document, indicating a critical missing security feature.

HOLOGRAM_SIDE_TOP_IMAGES_ABSENT	Top images expected on the hologram side are absent, indicating a missing security feature.
HOLOGRAM_ELEMENT_PRESENT	The required hologram element is present, confirming the security feature.
HOLOGRAM_FRAMES_IS_ABSENT	Frames that should surround the hologram are missing, suggesting potential tampering.
HOLOGRAM_HOLO_FIELD_IS_ABSENT	The holographic field expected on the document is absent, indicating a crucial security flaw.
PHOTO_PATTERN_INTERRUPTED	The continuous pattern in the photo area is interrupted, which could indicate tampering.
PHOTO_PATTERN_SHIFTED	The pattern in the photo area has shifted from its expected position, suggesting manipulation.
PHOTO_PATTERN_DIFFERENT_COLORS	Colors in the photo pattern do not match expected standards, indicating a possible forgery.
PHOTO_PATTERN_IR_VISIBLE	The photo pattern, which should not be visible under infrared light, is detected, suggesting incorrect materials.
PHOTO_PATTERN_NOT_INTERSECT	Patterns that should intersect do not, indicating a misalignment or editing.
PHOTO_SIZE_IS_WRONG	The size of the photo does not meet the specified dimensions, indicating potential fraud.
PHOTO_PATTERN_INVALID_COLOR	The color of the photo pattern is incorrect, suggesting the use of non-standard materials.
PHOTO_PATTERN_SHIFTED_VERT	The photo pattern is vertically shifted, which could indicate physical tampering.
PHOTO_PATTERN_PATTERN_NOT_FOUND	The expected pattern in the photo area is not found, indicating a missing security element.
PHOTO_PATTERN_DIFFERENT_LINES_THICKNESS	Line thickness in the photo pattern varies, which should not occur if genuine.
PHOTO_IS_NOT_RECTANGLE	The photo is not in the standard rectangular shape, suggesting alteration.
PHOTO_CORNERS_IS_WRONG	The corners of the photo do not match the expected specifications, indicating possible tampering.
DOCUMENT_IS_CANCELLING	Indicates that the document has been marked as cancelled, typically found in voided or invalidated documents.
TEXT_COLOR_SHOULD_BE_BLUE	Text that should be blue is incorrectly colored, suggesting a printing error or manipulation.
TEXT_COLOR_SHOULD_BE_GREEN	Green text is found to be incorrectly colored, indicating potential forgery.
TEXT_COLOR_SHOULD_BE_RED	Red text is incorrectly presented, which could indicate tampering.
TEXT_SHOULD_BE_BLACK	Text that should be black is found in another color, suggesting a critical error in document production.
BARCODE_WAS_READ_WITH_ERRORS	The barcode could not be read correctly, indicating potential issues with its formatting or damage.
BARCODE_DATA_FORMAT_ERROR	The data format of the barcode does not match expected specifications, indicating potential manipulation.
BARCODE_SIZE_PARAMS_ERROR	The size parameters of the barcode do not meet the required standards, suggesting a discrepancy.
NOT_ALL_BARCODES_READ	Not all barcodes on the document could be read, which may indicate damage or intentional obfuscation.
GLARES_IN_BARCODE_AREA	Glares detected in the barcode area interfere with reading, potentially due to improper document handling or printing.
PORTRAIT_COMPARISON_PORTRAITS_DIFFER	Differences detected between portraits that should be identical, suggesting possible fraud.
PORTRAIT_COMPARISON_NO_SERVICE_REPLY	The service expected to reply to a portrait comparison did not respond, hindering verification.
PORTRAIT_COMPARISON_SERVICE_ERROR	An error occurred within the portrait comparison service, affecting the outcome.
PORTRAIT_COMPARISON_NOT_ENOUGH_IMAGES	Insufficient images available for effective portrait comparison, limiting verification capabilities.
PORTRAIT_COMPARISON_NO_LIVE_PHOTO	No live photo available for comparison against the document portrait, necessary for certain checks.
PORTRAIT_COMPARISON_NO_SERVICE_LICENSE	The license for the portrait comparison service is absent or expired, preventing comparison.
PORTRAIT_COMPARISON_NO_PORTRAIT_DETECTED	No portrait could be detected for comparison purposes, suggesting a potential issue with the document or image quality.
MOBILE_IMAGES_UNSUITABLE_LIGHT_CONDITIONS	Light conditions for images taken with a mobile device are unsuitable, affecting image quality and verification.
MOBILE_IMAGES_WHITE_UV_NO_DIFFERENCE	No difference detected between images under white and UV light, which is unusual and may indicate issues.
FINGERPRINTS_COMPARISON_MISMATCH	Mismatch found during fingerprint comparison, suggesting discrepancies between registered data and the document.
HOLO_PHOTO_FACE_NOT_DETECTED	No face detected in the holographic photo, which is necessary for certain security verifications.
HOLO_PHOTO_FACE_COMPARISON_FAILED	The face comparison within the holographic photo failed, suggesting discrepancies or poor quality.
HOLO_PHOTO_GLARE_IN_CENTER_ABSENT	Expected glare in the center of a holographic photo is absent, indicating a potential security feature issue.
HOLO_PHOTO_HOLO_ELEMENT_SHAPE_ERROR	The shape of the holographic element does not match specifications, suggesting tampering or error.
HOLO_PHOTO_ALGORITHMS_STEPS_ERROR	Errors detected in the algorithmic steps used for analyzing holographic photos, affecting the outcome.
HOLO_PHOTO_HOLO_AREAS_NOT_LOADED	Holographic areas in the photo did not load correctly, potentially due to file corruption or loading errors.
HOLO_PHOTO_FINISHED_BY_TIMEOUT	The holographic photo analysis timed out before completion, suggesting processing issues.
HOLO_PHOTO_DOCUMENT_OUTSIDE_FRAME	The document is positioned outside the frame in the holographic photo, indicating potential misalignment or improper handling.
LIVENESS_DEPTH_CHECK_FAILED	Depth check for liveness verification failed, suggesting the document may not be genuine.
MRZ_QUALITY_WRONG_SYMBOL_POSITION	Symbols in the MRZ are positioned incorrectly, suggesting potential errors in document printing.
MRZ_QUALITY_WRONG_BACKGROUND	The background of the MRZ does not meet the specified quality standards, potentially affecting readability.
MRZ_QUALITY_WRONG_MRZ_WIDTH	The width of the MRZ is incorrect, which could indicate a printing or specification error.
MRZ_QUALITY_WRONG_MRZ_HEIGHT	The height of the MRZ does not match required specifications, suggesting a potential error in production.
MRZ_QUALITY_WRONG_LINE_POSITION	Lines in the MRZ are positioned incorrectly, potentially due to printing errors.
MRZ_QUALITY_WRONG_FONT_TYPE	The font type used in the MRZ is incorrect, which may indicate unauthorized production or tampering.
OCR_QUALITY_TEXT_POSITION	The position of text analyzed using OCR does not meet quality standards, affecting data extraction accuracy.
OCR_QUALITY_INVALID_FONT	The font used in OCR-processed text is invalid, suggesting discrepancies or errors.
OCR_QUALITY_INVALID_BACKGROUND	The background for OCR-processed text is invalid, potentially affecting text recognition.
LASINK_INVALID_LINES_FREQUENCY	The frequency of lines in LASINK security features does not match expected standards, indicating potential issues.
DOC_LIVENESS_ELECTRONIC_DEVICE_DETECTED	Electronic device detected during document liveness checks, suggesting the presence of a fake or modified document.
DOC_LIVENESS_INVALID_BARCODE_BACKGROUND	The background for barcode areas during liveness checks does not meet standards, indicating potential tampering.
CHD_ICAO_IDB_BASE32_ERROR	Error in processing CHD ICAO IDB information encoded in BASE32, affecting data integrity.
CHD_ICAO_IDB_ZIPPED_ERROR	Zipped data in CHD ICAO IDB cannot be processed correctly, suggesting corruption or errors.
CHD_ICAO_IDB_MESSAGE_ZONE_EMPTY	The message zone in CHD ICAO IDB is empty, which is

Name	Description
BLANK	Checks for unmodified blank elements in the document.
FILL	Verifies the integrity of personalization elements.
PHOTO	Assesses the photo for tampering or substitution.
MRZ	Verifies the machine-readable zone for alterations.
FALSE_LUMINESCENCE	Detects unnatural luminescence from the document.
HOLO_SIMPLE	Checks for the presence and integrity of static holograms.
HOLO_VERIFY_STATIC	Verifies static holograms against known patterns.
HOLO_VERIFY_MULTI_STATIC	Multiple static hologram verification.
HOLO_VERIFY_DYNAMIC	Dynamic hologram verification for movement and light changes.
PATTERN_NOT_INTERRUPTED	Ensures patterns on the document are continuous without breaks.
PATTERN_NOT_SHIFTED	Checks for shifts in the document's printed patterns.
PATTERN_SAME_COLORS	Verifies color consistency in patterned areas.
PATTERN_IR_INVISIBLE	Checks for pattern visibility under infrared light.
PHOTO_SIZE_CHECK	Verifies the size of the photo against expected dimensions.
PORTRAIT_COMPARISON	Compares the document portrait against other images for consistency.
BARCODE	Validates barcode format and data integrity.
OCR	Optical character recognition accuracy check.
LIVENESS_DEPTH	Verifies depth in portrait images to detect overlays or paper copies.
MICRO_TEXT	Checks for the presence and accuracy of microtext.
FLUORESCENT_OBJECT	Detects fluorescent markers used in secure document printing.
LANDMARK_CHECK	Assesses facial landmarks in the document's portrait for consistency.
FACE_PRESENCE	Checks for the presence of a facial image.
LIVENESS_SCREEN_CAPTURE	Detects attempts to use a screen capture as a live image during verification.
LIVENESS_ELECTRONIC_DEVICE	Checks for signs of electronic device use in presenting the document image.
CHECK_DIGITAL_SIGNATURE	Validates the digital signature embedded in the document.
CONTACT_CHIP_CLASSIFICATION	Contact chip check, verifying chip presence and function.

Parameter	Description
True	The security check passed, confirming the document's authenticity.
False	The security check failed, indicating potential issues or tampering.
None	The security check was not applicable or could not be executed.

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