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Challenge

Build a BODS Jurisdictional Opacity and Layering Depth Evaluator

Measure corporate layering depth across multi-jurisdictional holding structures using BODS v0.4 data. Identify opaque disclosure regimes and formulate targeted evidence requests for entities lacking natural person resolution.

CybersecurityHosted by Vera
Challenge brief

What you are building

The core problem, expected build, and operating context for this challenge.

Measure corporate layering depth across multi-jurisdictional holding structures using BODS v0.4 data. Identify opaque disclosure regimes and formulate targeted evidence requests for entities lacking natural person resolution.

Enhanced due diligence investigator

Ingest nested BODS v0.4 ownership statements representing multi-tier corporate hierarchies.

Calculate structural depth and flag offshore jurisdictions with non-public ownership registries.

Isolate ownership branches where beneficial owner identification terminates without reaching a natural person.

Formulate formal information request questionnaires for target entities in opaque regimes.

Multi-tier hierarchy visualizer with node-specific risk tags and automated questionnaire generator panel.

Generate synthetic nested corporate graphs in BODS JSON format spanning multiple tax havens and holding tiers. Starter examples below are synthetic. They are not downloaded records.

Beneficial ownership modelling Applies BODS v0.4 modeling requirements regarding real world identifiers and indirect beneficial ownership paths.

pydantic-ai, fastapi, networkx. Provides robust data validation for recursive ownership trees and guarantees schema conformity of evidence requests. Local or hosted LLM to compose precise documentary request letters tailored to specific foreign jurisdictions.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Traverses corporate holding chains up to ten layers deep to find terminal entities.

Calculates cumulative effective interest through intermediate shareholding percentages.

Flags opaque intermediary jurisdictions lacking public beneficial ownership registries.

Produces structured JSON evidence request templates specifying required registry extracts.

```json [ { "input": { "root_entity": "Omega Trading PLC", "tree": [ { "tier": 1, "entity": "Omega Trading PLC", "parent": "Seashell Capital Ltd", "share_pct": 100, "jurisdiction": "GB" }, { "tier": 2, "entity": "Seashell Capital Ltd", "parent": "Tortola Trust Corp", "share_pct": 100, "jurisdiction": "VG" }, { "tier": 3, "entity": "Tortola Trust Corp", "parent": null, "share_pct": 100, "jurisdiction": "VG" } ] }, "expected_output": { "root_entity": "Omega Trading PLC", "layering_depth": 3, "has_opaque_jurisdiction": true, "terminal_unresolved_entity": "Tortola Trust Corp", "required_evidence": [ { "entity": "Tortola Trust Corp", "jurisdiction": "VG", "document_type": "Deed of Trust and Register of Directors" } ], "diagram_summary": "Linear 3-tier chain ending in opaque BVI trust entity" } }, { "input": { "root_entity": "Greenfield Transport Ltd", "tree": [ { "tier": 1, "entity": "Greenfield Transport Ltd", "parent": "David Greenfield", "share_pct": 100, "jurisdiction": "GB" } ] }, "expected_output": { "root_entity": "Greenfield Transport Ltd", "layering_depth": 1, "has_opaque_jurisdiction": false, "terminal_unresolved_entity": null, "required_evidence": [], "diagram_summary": "Direct ownership by verified natural person" } } ] ```

Assists analytical research only; does not submit formal legal orders or communicate externally. Use mock external writes. Require human review before any real deployment.

Rules

Participation guide

Assists analytical research only; does not submit formal legal orders or communicate externally. Use mock external writes and human review.

Delivery guide

How work is evaluated

Evaluation

Traverses corporate holding chains up to ten layers deep to find terminal entities. Calculates cumulative effective interest through intermediate shareholding percentages. Flags opaque intermediary jurisdictions lacking public beneficial ownership registries. Produces structured JSON evidence request templates specifying required registry extracts.

Submission format

Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.

Datasets

Challenge datasets

Public datasets, plus the private datasets you have access to.

Evaluation rubric

How submissions are scored

These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.

Dimensions
4 scoring checks
Binary
1 pass or fail dimensions
Ordinal
3 scaled dimensions
Dimension 1

Complete workflow

Ingest nested BODS v0.4 ownership statements representing multi-tier corporate hierarchies. Calculate structural depth and flag offshore jurisdictions with non-public ownership registries. Isolate ownership branches where beneficial owner identification terminates without reaching a natural person. Formulate formal information request questionnaires for target entities in opaque regimes.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 2

Correctness and evidence

Traverses corporate holding chains up to ten layers deep to find terminal entities. Calculates cumulative effective interest through intermediate shareholding percentages. Flags opaque intermediary jurisdictions lacking public beneficial ownership registries. Produces structured JSON evidence request templates specifying required registry extracts.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 3

Review interface

Multi-tier hierarchy visualizer with node-specific risk tags and automated questionnaire generator panel.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 4

Safe execution

Assists analytical research only; does not submit formal legal orders or communicate externally.

Binary check

This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.

Learning goals

What you should walk away with

  • Ingest nested BODS v0.4 ownership statements representing multi-tier corporate hierarchies.

  • Calculate structural depth and flag offshore jurisdictions with non-public ownership registries.

  • Isolate ownership branches where beneficial owner identification terminates without reaching a natural person.

  • Formulate formal information request questionnaires for target entities in opaque regimes.

Resources and assets

Reference links and supporting material

Dataset notes

Generate synthetic nested corporate graphs in BODS JSON format spanning multiple tax havens and holding tiers. Supplied starter examples are synthetic, not source extracts.

Challenge setup

Configuration summary for this challenge.

Challenge input

Input details are not configured.

Pydantic AI

Typed Python agent framework.

Evaluated output

No output checks are configured.

Evaluation checks
  • Ingest nested BODS v0.4 ownership statements representing multi-tier corporate hierarchies. Calculate struc...
  • Traverses corporate holding chains up to ten layers deep to find terminal entities. Calculates cumulative e...
  • Multi-tier hierarchy visualizer with node-specific risk tags and automated questionnaire generator panel.
Configured evaluation evidence
  • 2 public reference cases
Configured runtime
  • 2 configured tools

Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.

View technical recipe

Configured tools

Action Space
  • Pydantic AI · Optional
Orchestration
  • Pydantic AI · Optional

Evaluation contract

  • Complete workflow · Weight 40
  • Correctness and evidence · Weight 30
  • Review interface · Weight 20
  • Safe execution · Weight 10

Reference cases

  • 2 public reference cases

Workflow tasks

No workflow tasks are configured.

Recipe freeze marker

No recipe freeze time is recorded.

Frequently Asked Questions about Build a BODS Jurisdictional Opacity and Layering Depth Evaluator