Send the filing. In 48 hours, Mejepa returns a signed verification packet — every citation checked, every quote matched to source, every unsupported claim flagged. Admissible as evidence of pre-filing diligence.
Lawyers are using AI for research, drafting, and filing prep. The failure mode is personal and immediate: fabricated citations, fictional quotes, unsupported claims, sanctions, malpractice exposure, and bar complaints — under your name on the docket.
By the end of 2025, courts had documented over 729 distinct AI-hallucination incidents in filed briefs. Sanctions per case now reach $31,000 to $100,000+. In Johnson v. Dunn (N.D. Ala., July 2025), the court issued sanctions, disqualified counsel, and notified the state bar. Mata v. Avianca made the genre famous; the cases since have made it routine.
The ABA's Formal Opinion 512 reframed AI use as a Rule 1.1 competence duty. Standing orders in N.D. Tex., the 5th Circuit, and dozens of district courts now require explicit AI-use certifications in filings. Malpractice insurers are repricing premiums accordingly.
None of the existing safeguards — internal review, paralegal cite-checking, "I'll just double-check it myself" — produce a signed record that the verification happened before filing. Without that record, your defense to a sanction motion is your word against the docket.
Mejepa is that record.
Choose Express for the AI-only signed packet, or Counsel-Reviewed when the matter warrants attorney sign-off on the verification itself.
Mejepa's frozen instruments + conformal guard process the filing end-to-end. Signed verification packet returned in 24 hours. Every citation matched to source; every unsupported claim flagged; every passage requiring further review enumerated.
Express packet plus attorney review of edge cases, ambiguous quotes, and discretionary citations. The reviewing attorney's sign-off is part of the witness chain. Recommended for filings in courts with explicit AI-disclosure standing orders.
Send the filing as PDF or DOCX via secure upload. Optional: provide a citation manifest or note which sources the AI used.
Mejepa runs the document through 13 frozen instruments, matches citations against Westlaw, Lexis, and PACER, and produces a per-claim verdict.
A human reviewer inspects the abstention queue, edge cases, and any failed verdicts. Counsel-Reviewed tier adds attorney sign-off.
Signed PDF packet + machine-verifiable JSON witness chain. Both can be replayed and verified offline by any auditor or court.
Below: a redacted extract from a Counsel-Reviewed Verification packet. PDF cover, witness-chain JSON, signature block, and the human reviewer's seal. Both the PDF and the JSON can be verified offline by any party using Mejepa's published public key.
| Citations checked | 14 |
| Verified · PASS | 12 |
| Fabricated · FAIL | 1 |
| Inconclusive · ABSTAIN | 1 |
{
"packet_id": "mejepa-vf-24-0917",
"issued": "2026-05-09T16:42:18Z",
"matter": "24-CV-0917",
"tier": "counsel-reviewed",
"verdicts": {
"pass": 12, "fail": 1, "abstain": 1
},
"reviewer": {
"role": "Attorney-Witness",
"bar": "OH-1234567",
"sig": "0x9a3f...d7c1"
},
"instruments": 13,
"coverage": 0.94,
"chain_prev": "0x4c08...2a1e",
"chain_next": "0x7e21...b9f0",
"ed25519_sig": "0x... (264 bytes)"
}
The packet you buy this week is built on shipping, published primitives. The vision below names where the methodology goes next — flagged as roadmap, never promised under contract.
Mata v. Avianca (S.D.N.Y. 2023) imposed sanctions on counsel who filed AI-generated citations to cases that did not exist. By end of 2025, courts documented over 729 hallucination incidents in filed briefs; per-case sanctions reached $31,000–$100,000+ (Johnson v. Dunn, N.D. Ala., July 2025). Submit your AI-assisted filing to Mejepa before filing — every citation reconciled to Westlaw, Lexis, and PACER source text; every quote matched verbatim; every unsupported claim flagged; signed packet admissible as evidence of pre-filing diligence.
AI filing verification is the productized service of checking an AI-assisted brief, motion, or memo against authoritative sources before filing. Mejepa produces a signed verification packet — PDF cover with per-claim verdict log, machine-verifiable JSON witness chain (ed25519), citation-by-citation source comparison, and a sanctions-defense memorandum. Delivered in 48 hours. Verifiable offline by opposing counsel, the court, malpractice insurers, and bar grievance committees without contacting Mejepa.
Mejepa uses AgentClaimGraph — a deterministic, no-LLM parser — to map each cited authority into one of five statuses: Confirmed (matched to source text), Missing (no such case exists), SuperficialMatch (case exists but quote does not match), AmbiguousRef (incomplete or unparseable), or Unverifiable (no authoritative source available). Source-of-truth checks run against Westlaw, Lexis, PACER, and the U.S. Code. No LLM judges your filing.
ABA Formal Opinion 512 (July 2024) reframed AI use as a Rule 1.1 competence duty. Lawyers using AI-assisted research must take reasonable steps to verify outputs before filing. Standing orders in N.D. Tex., the 5th Circuit, and dozens of district courts now require AI-use certifications. Mejepa produces the signed pre-filing diligence record that operationalizes that duty — a defensible artifact for sanctions motions and bar complaints.
Two tiers. Express ($750): signed packet within 24 hours, AI-only. Counsel-Reviewed ($2,500): signed packet within 48 hours; adds an attorney-witness signature to the ed25519 witness chain with the reviewing attorney's bar admission recorded as part of the chain. Counsel-Reviewed is recommended for filings in courts with AI-disclosure standing orders.
Productized fixed-scope pricing: $750 Express (AI-only, 24-hour) or $2,500 Counsel-Reviewed (AI + attorney-witness, 48-hour). Both cover one document end-to-end. Volume pricing available for AmLaw firms processing multiple filings per month. Compare: per-hour associate cite-checking ($300–$1,000/hr) produces no replayable signed record; Johnson v. Dunn sanctions reached six figures per case.
Yes. Every packet ships with a JSON witness chain signed by an ed25519 key. The Mejepa public key is published at mejepa.com/keys. Opposing counsel, the court, malpractice insurers, and state bar grievance committees verify the packet offline in approximately 30 seconds with standard ed25519 tooling — without contacting Mejepa or trusting the vendor. This verifiable-by-anyone property is the durable difference from a self-attested AI review.
One AI-assisted brief, motion, or memo. Quoted price. Signed in 48 hours. Verifiable by opposing counsel, the court, your malpractice carrier, and the bar — offline, without trusting us.
LITIGATION FOLIO · VOL · I · № 01 · [email protected]