Method & sources
A teaching essay on the Beneficial Ownership Data Standard (BODS v0.4). The reader follows one editorial data line from a company certificate to the person behind it, then learns how the standard turns that chase into structured statements. The company network in this essay is fictional and the data line is a drawing device, not a feature of the standard. The standard facts below are drawn from the published BODS documentation.
What is reported
- BODS expresses ownership and control as three statement types: entity, person and relationship statements, not rows in a table. A dataset is an array of statements.
- A relationship names a
subject and an interestedParty, then lists interests; each interest carries its own directOrIndirect and beneficialOwnershipOrControl flag, with share modelled as an object (exact, minimum, maximum).
- A
statementId identifies each claim; a recordId identifies the entity, person or relationship the claim is about. Statements are append-only: corrections are new statements (recordStatus new → updated → closed) that amend or confirm older ones, never edits in place.
Standards & companion
- Beneficial Ownership Data Standard (BODS v0.4), published by Open Ownership — the schema this essay teaches.
- BODS is built to be linkable, dated and testable, so a published company name can be connected to a person record.
- Companion essay: The Black Light for Public Money shows the use case — joining OC4IDS procurement data to ownership data via a shared identifier. This essay teaches the ownership data model itself; that essay applies it.
What is editorial
- The data line: one bright strand that changes meaning at each stage — certificate underline, ownership trail, graph edge, ledger spine, query path. A metaphor for traceability, not a BODS field.
- The company network — Mirembe Infrastructure Ltd, Lakefront Holdings Ltd, Blue Gate Nominees Ltd, Riverbank Works Ltd, Amina K. — is entirely fictional; any resemblance to real companies or people is coincidental. The award-committee conflict and the dissolve-and-re-form ("phoenix") sequence are illustrative stakes to show why following the line matters; they are not a real case, and a repeated pattern behind one person is a flag to investigate, never a finding of wrongdoing.
- The "SHAREHOLDER FOUND / NOT HUMAN" stamp and the query console are illustrations of the argument, not screenshots of a live tool. Field names follow BODS v0.4 (for example
source.type uses the codelist value selfDeclaration; "no disclosable owners" is a relationship whose interestedParty.reason is noBeneficialOwners).
- A red (broken) line appears only where the honest answer is missing, unknown or not disclosed, to show the model records absence rather than hiding it.
The honest claim, stated plainly: BODS makes ownership claims linkable, dated and testable. It does not, by itself, reveal the truth. A statement is a claim from a source as of a date — its value is that you can trace it, challenge it, and check whether it changed. The standard structures accountability; it does not adjudicate it.
A visual essay by Michael Cengkuru · cengkuru.com
The company network is fictional; standard facts verified against the published Beneficial Ownership Data Standard (v0.4) documentation, June 2026.
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