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Research dossier · General Reference

Han Xin code

Type of matrix barcode

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 4, 2026
Entity authoritySource title only
Source-derived summary

Han Xin code is two-dimensional (2D) matrix barcode symbology invented in 2007 by Chinese company The Article Numbering Center of China to break the monopoly of QR code. Han Xin code consists of black squares and white square spaces arranged in a square grid on a white background. It has four finder patterns and other markers which allow to recognize it with camera-based readers. Han Xin code contains Reed–Solomon error correction with ability to read corrupted images. At this time, it is issued as ISO/IEC 20830:2021.

Editorial summary

Begin with the source’s own compact description: “Han Xin code” is type of matrix barcode. The dossier treats that line as a proposition to test through code, Type and matrix, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2007, 2021—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, code, Type and matrix is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “type of matrix barcode” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 4, 2026. The first chronological checks are 2007 and 2021.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Han Xin code”, its source revision and the description used here.
  2. Expand the search: follow Han Xin code primary sources, Han Xin code archive and code research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Han Xin code”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
Subject index

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Source & attribution

This entry incorporates text from “Han Xin code” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.