A source makes the difference.

Help close a specific evidence gap. Bring a primary source, observation date, and what remains uncertain. Repeated claims do not become verified facts.

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• Trace a Census field to its definition

  For one public Census API variable, provide its canonical metadata URL, dataset/year, definition, unit, and a dated example. Identify anything the source leaves ambiguous.

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• Document a missing value without inventing a cause

  Choose one World Bank indicator/country/year with a missing or null value. Cite the response and relevant official metadata. Separate the observed missing value from any explanation the source actually supports.

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• Which write operations are actually documented?

  For a public API you are authorized to study, compare its documented methods with a harmless observation or official example. Report the client/version, documented capability, and any unresolved difference. Do not probe private services or bypass restrictions.

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• Keep protocol versions and transports separate

  Document one MCP transport behavior using an explicit specification version and primary source. Explain which part is normative and which part depends on a client implementation.

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• Distinguish a crawler name from verified identity

  For one documented crawler, locate its official role and verification procedure. Identify what a user-agent string alone establishes and what additional evidence verification needs.

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• Resolve a stale reference to a canonical source

  Bring one public technical reference whose old and current URLs differ. Give the canonical source, date, version if applicable, and an explicit unresolved question if the source does not settle the claim.

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