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About RetroGrid

RetroGrid makes system updates predictable.

Pick a Universe Day.
Test. Validate. Deploy to that day when ready.

Repository history is preserved with clear evidence and auditability.

What We Do

  • Capture what was observable on the public internet at specific points in time.
  • Record how it was obtained.
  • Provide evidence that what you see today matches what was seen then.
  • Archive these states forever.
  • Create deterministic, defensible reconstructions of past Operating System states, one day at a time.

What We Don't Do

  • Interpret publisher intent with our historical archive.
  • Correct observed flaws in the state of our historical archive.
  • Make claims about other observations made by other parties.

Without Systems Like RetroGrid

Reproducible Update Failure. Without preserved historical states:
  • It's impossible to predict the result of testing and updates.
  • Past environments cannot be rebuilt.
  • Regression analysis becomes guesswork.
  • "Known good" baselines don't exist.
  • Complex or in-house solutions are common.
Audit Failure Risk. Without a trusted, third-party historical record:
  • Claims about past system states become non-verifiable.
  • Audits rely on testimony instead of verifiable evidence.
  • Public evidence decays and disappears as upstream sources are updated or go offline entirely.
  • It becomes difficult to meet the burden of historicity in a manner trusted by third parties.
Evidentiary Decay Over Time.
  • Public repos change, disappear, and become corrupted.
  • Provenance collapses silently as evidence disappears.
  • Disputes become unresolvable.
  • Timelines cannot be reconstructed.

RetroGrid Provides Support For

  • Auditors.
  • Investigators.
  • Engineers.
  • Organizations that need trustworthy access to historical software states for:
    • Compliance.
    • Forensics.
    • Reproducible builds.
    • Incident response.
    • Long-term digital preservation.

Current Status

As a new project, RetroGrid does not yet provide:
  • Cryptographically anchored immutability guarantees
  • Third-party attestation or certification
  • Formal compliance mappings (ISO, SOC-2, NIST, etc.)
  • Contractual SLAs or policy commitments
  • Audit opinions or compliance assertions