Digital ExtensionsEvidence software
Digital Extensions — Software Studio

Software grounded in
primary sources.

We build tools for legal and investigative professionals who work directly with complex source material — where ambiguity carries real cost. Precision, provenance, and control. No hidden inference.

The demo runs in your browser — nothing to install. The trial requires macOS on Apple Silicon (M-series); $249/year after. New: a Windows build →


Try it in the browser
before you install anything.

A sample injury case is already open — fourteen records, thirty-seven dated events. Highlight a line, give it a date, and watch it drop into the chronology with its source attached. Nothing is uploaded, nothing is saved, and a reload starts it over.

Open the live demoAny modern browser · best on a desktop screen · nothing to install
  1. 01Demo in the browser, now
  2. 02Start your 7-day free trial on your own records
  3. 03License at $249/year
The Corpus Chronology demo: a physical-therapy summary open on the left with two passages highlighted, and on the right the case chronology with one event opened to show the exact passage it was cited from.
01The record, marked

A physical-therapy summary with the passages that matter highlighted — the attendance count, the gap in visits. The highlight is the citation.

02The chronology, building

Each event you confirm drops onto the timeline, dated from what the page says. You pick the date; nothing is inferred for you.

03The source, one motion away

Open any entry and the passage it came from is right there — file, excerpt, tag. Nothing in the timeline was typed from memory.

Free practice corpus · Keller v. Ashgrove Building Services

1,050 synthetic medical records. Free. Go practice.

Learning chronology work takes a record set you can lawfully open, and new consultants have none. So here is one at full scale: a fictional production built to behave like a real one — faxes, skewed scans, a disc that arrives three weeks late, a handwritten date that changes the story. Fully synthetic, licensed CC BY 4.0, yours to teach with.

Get the practice corpusAn email address in; the production comes back as a link.
Documents
1,050
Pages
2,664
Need OCR first
412
License
CC BY 4.0

Version 1.2 · every document listed in the manifest

Legal Nurse Consultants, Expert Witnesses & Solo Attorneys

Corpus Chronology

Turn medical records, discovery, and exhibits into a timeline where every event traces back to its exact source page. No AI in the loop and no cloud upload — you do the reading, and the software keeps the receipts. When the methodology question comes, there is a document behind the answer.

  • Any format, one project — PDFs, scans, faxes, images, OCR included
  • Highlight anything — a diagram or an X-ray cites its page like text does
  • Pick dates, don't retype them — offered from the page, never invented
  • Export, sourced — every entry already carries its source page

For macOS on Apple Silicon (M-series). Windows build just landed →

Built For
  • Medical chronologies
  • Legal nurse consulting
  • Expert witness preparation
  • Personal injury & med-mal
  • Records review in solo practice
  • Discovery & exhibit timelines

$249/year

7-day free trial — records never leave your machine, and nothing in your chronology was written by a model.

Start your 7-day free trialNot ready to install? Open the demo ↗

Corpus Review

In Development

The full evidence-analysis workspace for large document sets — annotation with exact provenance, cross-references, and reporting that traces every assertion to its origin. It's the same software as Corpus Chronology with the rest of the surface, and it isn't out yet.

Join the Corpus Review list →