Citation Source and Traceability for ID Document KYC

What the Data for This Category Looks Like

ID document data is sourced from official authoritative systems including public security household registration systems and entry-exit administration departments. Update frequency varies by document type: resident ID cards have stable, infrequent updates during their validity period, while temporary ID cards have shorter update cycles. Documents are fixed-format printed or electronic files, with standard fields including name, citizen ID number, address, issuing authority, and validity period. The citizen ID number is an 18-digit numeric combination, and validity periods are marked in year-month-day format, with no extra unstructured redundant content.

How These Characteristics Impact the Citation Source and Traceability Process

The characteristics of official data sources require that the traceability process must bind official source tags to meet financial compliance requirements. Fixed formats and standard fields mean that parsing must use dedicated extraction rules, rather than general document parsing logic. The uniqueness of the 18-digit citizen ID number requires precise field matching during recall to avoid cross-document confusion. Differences in update cycles require that traceability must verify document validity periods to prevent use of expired document parsing results. These characteristics collectively mean that the configuration for the citation source and traceability process must be adjusted specifically for recall rules, field mapping, and data source binding logic, and cannot directly reuse configuration schemes from other categories.

Configuration Settings

Configuration Item	Recommended Value	Rationale for This Value
`Maximum Recall Count`	Top 8 results	ID documents have a small number of core fields and strong uniqueness; too many recalls will introduce irrelevant documents and interfere with traceability accuracy
`Similarity Threshold`	0.75–0.85	ID document fields have strong uniqueness; a threshold that is too low will match non-target documents, while a threshold that is too high may miss valid sources
`PARSE_FILE_TIMEOUT_SECONDS`	300 seconds	ID document image parsing requires OCR recognition; processing time is longer for low-resolution or multi-page documents, so sufficient duration must be reserved
`Text Chunk Length`	100–150 characters	ID document fields are short and independent; too short chunks will split individual fields, while too long chunks will mix in irrelevant information
`Traceability Data Source Binding`	Bind public security household registration data source tags	ID document sources have official authority; clearly marking legitimate data sources is required to meet financial compliance requirements
`Field Mapping Rules`	Map by name, citizen ID number, validity period	ID document fields are standardized and fixed; clear mapping ensures accurate association of corresponding information during traceability

The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing settings.

Three Common Misconfigurations

Phenomenon: A Cannot redefine property: toString error occurs after deployment, with logs showing a property redefinition error. Cause: The field mapping configuration for ID document parsing was not isolated, conflicting with parsing rules from other categories, resulting in duplicate property definitions.
Phenomenon: Non-target ID document information is mixed into citation results, and the number of traceability entries exceeds expectations. Cause: The Maximum Recall Count was set too high, and the recall range was not restricted based on the short-field characteristics of ID documents, resulting in matching irrelevant documents.
Phenomenon: Citizen ID number or validity period fields are missing from traceability results, making compliance verification impossible. Cause: The Field Mapping Rules did not explicitly bind the core fields of ID documents, so the corresponding content was not extracted during parsing.

How to Verify Correct Configuration

A single ID document image is uploaded, parsing is triggered, and extracted fields are reviewed to confirm that core fields including name, citizen ID number, and validity period are correctly identified.
The knowledge base configuration page is viewed to confirm that Traceability Data Source Binding is marked as the official household registration data source, and Field Mapping Rules have completed binding of the corresponding fields.
A query including the core fields of ID documents is initiated, citation source tags in returned results are reviewed, and confirmation is made that only bound legitimate data sources are associated.
The Similarity Threshold is adjusted to 0.8, recall results are tested, and confirmation is made that only content related to the target ID document is matched, with no irrelevant documents included.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.