ARCHIVISTBuy

Centennial Defense Systems

Built for evidence review,
not guesswork.

Investigative evidence intelligence for your Mac. Capture web evidence, connect it to documents, and export case packages with content-addressed integrity metadata. Core archive workflows run locally.

macOS · Local archive processing · Verification metadata · No account for core workflows

How It Works

Four steps from evidence to reviewable 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 evidence packages with chain-of-custody notes, integrity verification, PDF reports, and a standalone verifier.

What Makes It Different

Content-addressed integrity by architecture

  • Every claim traces to a source segment with SHA-256 integrity.
  • Annotations are integrity-chained separately from source evidence.
  • Evidence packages include verification metadata for detecting changed source files.
  • Core archive workflows run on your Mac; purchase, support, and website traffic use standard external services.

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
  • Evidence packages with verification metadata
  • 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
Request Access

Start investigating

Build your first evidence package with verification metadata in minutes.

Buy Archivist

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