VIGENT LEGISLATION · LAYER N
Any supported jurisdiction activates under a Premium contract — your corpus, your priority, your SLA.
THE PROBLEM
In 2023 a New York attorney was sanctioned for filing a brief with six fabricated case citations that ChatGPT had produced from parametric memory (Mata v. Avianca). The same failure mode applies to statute citations: a generic LLM "remembers" redactions that have already been amended, mixes paragraphs, and invents article numbers. In positive law, that is professional liability.
HOW NEXUS SOLVES IT
Before every analysis, Nexus loads the literal in-force text of the relevant articles from a consolidated, indexed statute corpus. Each citation produced by the system comes from that block, word by word, and is marked with the [L4-N] seal (Verified In-Force Statute). If a requested citation is not in the corpus, the system declares L4-N-NOT-AVAILABLE in the audit trail — it never fabricates a citation.
WHAT THE LAWYER ACTUALLY SEES
FINDER
Search any article in five seconds without leaving the platform. Filters by statute type, jurisdiction, and effective date (for historical queries: what did article X say in 2018?). Results show literal text, link to the official source, and a one-click "copy citation" button.
EVIDENCE TRAY · VERIFY-CITA
Every citation in an analysis carries a "verify against source" button. Green: the text matches literally. Amber: the citation exists but the LLM paraphrased it. Red: the citation is wrong or not in the corpus. Warning: the article has been amended and requires partner review. The same verification is exposed headlessly as POST /api/v1/normativa/verify-cita for partner integrations. Beyond the per-citation verdict, the system self-flags citations it cannot verify and routes them to human review instead of presenting them as settled — for example, a ruling marked 'cited from memory — verify in CENDOJ'.
CROSS-REFERENCE
nextFor each statute article, see which judgments apply it. For each judgment, see which articles it cites. Schema deployed; execution in progress.
NORM HIERARCHY (STUFENBAU)
Where a jurisdiction's corpus is deployed, the engine knows each norm's rank in the legal hierarchy — constitution, then organic law and statute, then regulation, and so on down the pyramid — and tracks the in-force status of the norm at that level. So an analysis can tell a constitutional provision from a ministerial order and weigh them accordingly, rather than treating every cited text as equal.
COVERAGE · WORKED EXAMPLE
Consolidated in-force version from the official BOE source. Promulgation dates from 1851 to today. The infrastructure for historical article-by-article versioning is in the schema; activation per Premium contract. The corpus carries current in-force law only — repealed or superseded norms are not included.
Temporal range: 1851 — 2026 (consolidated in-force version).
Types covered: Code · Organic Law · Ordinary Law · Royal Decree · Royal Decree-law · Royal Legislative Decree · Order · Resolution · Circular · Instruction · Agreements.
EU LAYER
Every analysis on Spanish law automatically loads the relevant EU legislation and CJEU case-law. The system flags when a national norm is affected by an EU directive of incomplete transposition or by CJEU jurisprudence.
Not an external link to EUR-Lex. Ingested, vectorised and queryable alongside the national corpus — through semantic search and through the citation verification module. Statute↔case-law cross-references are wired between the national and EU corpora.
OTHER JURISDICTIONS · PREMIUM ACTIVATION
The architecture is multi-jurisdictional. Every supported country ships with its localised legal module (official gazette, citation conventions, court hierarchy, statute structure, official language). Corpus ingestion runs per contract: when a Premium client signs, we ingest the requested jurisdiction's corpus and the integration begins receiving authoritative citations with L4-N seal. No queue behind another customer.
/jurisdictions →Get started today. The standard pipeline (contract analysis, case-law search, guided opinion, assisted drafting) runs on real matters with the L4-N seal active.