◆ARCHIVISTBuy

Centennial Defense Systems

Built to testify,
not hallucinate.

Investigative evidence intelligence for your machine. Capture web evidence, connect it to documents, and export tamper-evident case packages. Nothing leaves your computer.

View PricingSee How It Works

macOS · Local-first · No cloud · No telemetry

How It Works

Four steps from evidence to defensible case package

1. Capture

Import documents, web pages, AI conversations, and any file type. Browser extension captures live pages with one click.

2. Investigate

Triage evidence into cases. Map entities and relationships. Annotate sources with integrity-chained notes, tags, and flags.

3. Correlate

Search across all case evidence by entity, document, time window, or keyword. See connections the manual way would miss.

4. Export

Build tamper-evident evidence packages with chain-of-custody, integrity verification, and a standalone verifier.

What Makes It Different

Tamper-evident by architecture

  • Every claim traces to a source segment with SHA-256 integrity.
  • Annotations are integrity-chained separately from source evidence.
  • Evidence packages include an embedded root of trust that detects tampering.
  • Your data never leaves your machine. No cloud. No telemetry.

Pricing

Simple, honest pricing

Pay once for Personal and Professional. Annual plan for Investigator teams.

Personal

$49one-time

For individuals searching their AI conversations and documents.

  • ✓Up to 1,000 conversations
  • ✓Full-text search + integrity verification
  • ✓Evidence export with verification script
  • ✓1 year of updates, works forever after
  • ✓macOS
Buy — $49

Professional

$99one-time

For power users and solo investigators.

  • ✓Unlimited conversations and documents
  • ✓Case management + evidence triage
  • ✓Annotation layer with integrity chain
  • ✓Entity graph + timeline + correlation
  • ✓Tamper-evident evidence packages
  • ✓1 year of updates, works forever after
  • ✓macOS
Buy — $99

Investigator

$249/year

For professional investigation teams. Founding pilot.

  • ✓Everything in Professional
  • ✓Browser extension for live web capture
  • ✓Watch folder + AI conversation auto-ingestion
  • ✓Cross-document correlation engine
  • ✓Priority support
  • ✓Founding pilot: direct onboarding
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Start investigating

Build your first tamper-evident evidence package in minutes.

Buy Archivist

$49 Personal · $99 Professional · Direct purchase via email