About RetroGrid
RetroGrid preserves, reconstructs, and documents the operational history of operating system repositories with audit-grade rigor.
RetroGrid provides an audit-friendly "time machine" for operating system states grounded in evidence, traceability, and verifiability.
What We Do
- Capture what was observable on the public internet at specific points in time.
- Record how it was obtained.
- Provide verifiable evidence that what you see today matches what was seen then.
- Mine our historical archive to create clearly identified and defensible reconstructions of past Operating System states.
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
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.
Reproducibility Failure. Without preserved historical states:
- In preparation for rolling out system updates, the duration of "testing windows" becomes impossible to predict or enforce.
- Past environments cannot be rebuilt.
- Regression analysis becomes guesswork.
- "Known good" baseline becomes folklore.
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.