Proofbase Search / SourceMesh Research OS

Search the web like evidence matters.

Quick search when you need speed. Research Mode when you need source quality, uncertainty, debate context, timelines, and transparent evidence.

How it works
Fast source discovery for claims, URLs, domains, and broad article lookup.
Mode: Quick Search
Depth: fast routed search
Broad discovery first; no certainty claims.
First time? Paste any factual claim, news article URL, social link, or domain. SourceMesh will classify it, search public sources, and show evidence, uncertainty, missing evidence, and better follow-up searches.
Suggested topics — click to fill the search bar. You can edit before checking.

What you can do with Proofbase

Research

Paste a messy question and SourceMesh will classify it, search public evidence, and show what is missing.

Social evidence

Paste a public social URL. Proofbase checks public metadata, source transparency, and independent corroboration.

Debate toolkit

Build pro, con, and context evidence packets for policy, social, political, and philosophical topics.

Open Debate->
Glossary: · · · ·
What do you want to do?

A research OS, not a truth detector

Check a claim

Classify, search, and summarize public evidence.

Analyze a source

Inspect source quality, metadata, and transparency.

Build a debate brief

Prepare pro, con, context, and rebuttal packets.

Find articles

Discover journalism, research, and official context.

Explain a term

Turn confusing concepts into sourced context.

Check a social post

Separate social metadata from independent evidence.

Trust model

Evidence first, uncertainty visible

Proofbase shows what was understood, what was searched, what sources failed or were skipped, which evidence is weak, and what better searches would improve the check.

GDELTWikipediaPubMedOpenAlexCourtListenerRSSSemantic ScholarGitHubStack Exchange
Open DebateBuild Routine