cn-ib-source-verifier

CN IB Source Verifier

Audit the evidence chain from disclosed claim to primary source and, where applicable, reproducible calculation.

Principles

1. Verify the claim actually made, not merely whether the source exists.
2. Match source, date, geography, population, definition, period, currency, and unit.
3. Separate direct copy, transformation, calculation, extrapolation, and management inference.
4. Prefer primary and official sources. Use secondary sources only for discovery or clearly labeled context.
5. Preserve the original value and text before normalization.
6. Never update a volatile claim without stating the new as-of date and whether historical comparability changes.

Workflow

1. Build the claim ledger

Use assets/source-ledger-template.csv or equivalent XLSX fields:

claim_id, claim, section, claim_type, source_type, source_title,
source_locator, source_date, access_date, period, geography,
definition, original_value, reported_value, unit,
calculation_type, start_value, end_value, years,
review_status, reviewer, notes

Create separate rows when one sentence contains multiple independently verifiable claims.

2. Classify the source

Read references/source-hierarchy.md. Identify whether the source is:

• regulator or government;
• exchange or statutory filing;
• issuer primary material;
• recognized international organization or industry association;
• licensed financial database;
• professional research;
• media or aggregator;
• management representation;
• unknown.

Do not describe an industry report as government data.

When selecting where and how to search, read references/source-connectors.md and use scripts/plan_source_search.py. Prefer a configured MCP when it is licensed and preserves lineage; otherwise use the official website, browser, or public web search. 见微数据 is a discovery/index layer unless the underlying exchange or CSRC filing is also verified.

3. Verify the locator and context

Open the primary source and confirm: