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Editorial guide

Source Pins, Receipts, and Hallucination Controls in Legal AI

Why a citation is not the same as support, how page pins should survive a workflow, and what a verification receipt can and cannot prove.

By . Updated August 12, 2026. Under Seal verification review; lawyer verification remains mandatory. No named legal review is claimed unless identified here.

Short answer

A source pin connects a proposed factual line to a specific document and page. A verification receipt records the artifact version, sources, checks, gaps, review decision, and export state. Neither proves the source true, the record complete, a case still valid, or a legal conclusion correct.

Key takeaways

  • Citation existence, quotation accuracy, page support, and legal validity are different checks.
  • A pin must survive drafting, editing, review, and export without detaching from the statement.
  • Fail closed when support cannot be established; do not turn ‘not found’ into a confident answer.

Editorial methods are identified as such. Numbered links beside a paragraph or section point to the authority or framework relevant to that claim; a source does not certify Under Seal or replace current jurisdiction-specific review.

Four separate verification questions

Basis: editorial method

A system that answers only the first question should not market itself as verifying legal correctness. Negative-treatment and completeness claims also depend on the coverage of the authority corpus and the date it was reviewed.

  • Does the cited authority or document exist?
  • Does the quoted language occur at the stated location?
  • Does the source actually support the proposition as worded?
  • Is the authority current, controlling, applicable, and used consistently with the lawyer’s duties?

What belongs in a receipt

Basis: editorial method

Record stable matter, artifact, source, and version identifiers; checksums where appropriate; source locators; coverage and hold states; validator versions; failures; reviewer identity; signoff; and export eligibility. Earlier receipts should remain available when a human edit creates a new artifact version.

Human review is part of the system

Basis: external sources listed below

A named reviewer should inspect the proposed line beside its source and choose accept, edit, reject, or not found. A named attorney should approve work leaving the firm when the workflow requires it. Signing must not override unresolved blocking checks.

Sources for this section: [1] Formal Opinion 512: Generative Artificial Intelligence Tools (opens in a new tab)

Authorities and frameworks

Each source is classified below. It may govern a specific legal point, offer professional or government guidance, or provide a voluntary framework. The collection does not validate every editorial method in this guide and does not resolve a firm-specific question.