Self-verification of an L2-J citation against the jurisdiction's case-law corpus

Parses the citation (neutral citation, ECLI, ROJ, colloquial format), looks up the canonical document in the jurisdiction's corpus and optionally compares it against claim_text (Jaccard 0.35). Cost: 0 LLM. Returns one of: verified | mismatch | not_found | pending | not_verifiable (jurisdiction with no verification corpus wired up). PARTY-NAME CHECK (2026-07-27): when the citation carries the case name next to it ('Spandeck Engineering (S) Pte Ltd v Defence Science & Technology Agency [2007] SGHC 37'), the name is checked against the decision the citation resolves to. Incompatible → mismatch with citation.mismatchKind: "party", citation.party_check: "mismatch", both names (cited_case_name / canonical_case_name), a note stating that the citation EXISTS but points to a different decision, and — when located — the correct sibling citation in citation.suggested_citation. A citation written WITHOUT a case name behaves exactly as before (party_check: "no_name"); if the corpus record has no canonical case name the check does NOT run and says so (party_check: "unavailable" + note). note travels on every status (additive).

post/api/v1/jurisprudencia/verify-cita

Request

Base URL: https://legal.nexusquantum.legal
URL: https://legal.nexusquantum.legal/api/v1/jurisprudencia/verify-cita
Auth: HTTP bearer

Request body

citationstring required

Citation to verify (Spanish-language alias accepted: cita; citation takes precedence). Accepts neutral citations ('[2013] SGCA 15'), ECLI, ROJ or colloquial formats ('T-842 de 2019').

citastring

Spanish-language alias for citation.

claim_textstring

Text attributed by the LLM. If present, Jaccard similarity is computed.

jurisdictionstring

ISO code (Spanish-language alias accepted: jurisdiccion; jurisdiction takes precedence). No default: if omitted, the country declared by the citation itself (ECLI) is used, or the first verifier in the registry that recognizes its shape — no jurisdiction is privileged.

jurisdiccionstring

Spanish-language alias for jurisdiction.

Example request

{
  "citation": "Out of the Box Pte Ltd v Wanin Industries Pte Ltd [2013] SGCA 15",
  "cita": "ECLI:ES:TS:2023:1234",
  "jurisdiction": "SG",
  "jurisdiccion": "SG"
}

Response

Verification result.

Changes

No recorded changes to this operation across all 1 revision of this API.