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About RetroGrid
RetroGrid is a temporal mirroring service for predictable system updates.
- Pick a Universe Day.
- Test it, validate it.
- Deploy it any time.
It really is that easy.
Repository history is preserved with clear evidence and defensible documentation.
See the World's most detailed archive of Operating System history at the Retrogrid Archive.
What We Do
- Capture what was observable on the public internet at specific points in time.
- Record how it was obtained.
- Provide evidence designed for independent verification that what you see today matches what was seen then.
- Archive these states for long-term reference.
- Provide deterministic, defensible references 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 difficult or 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 an independent 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