An evidence layer for the web

Read the news with the receipts.

sideproof highlights the checkable claims on a page. Click one and it shows what credible sources actually say, the other side, and real links — graded by quality. Context, not a verdict.

thedailyrecord.com/health
Health · Opinion

The debates that won't go away

Every few months the same arguments resurface in group chats and comment sections, passed along faster than anyone can stop to check them.

Despite decades of research and the retraction of the paper that started it all, some still insist that childhood vaccines cause autism — a fear that keeps circulating long after the science settled.

Why do these claims travel so well, and what would it take to read past them? Part of the answer is speed: a single sentence spreads through a feed long before anyone pulls up the studies.

The research itself is rarely the hard part. The friction is everything around it — finding the primary source, weighing who is behind it, and noticing what the original framing quietly left out.

That gap, between what is claimed and what can be shown, is where most arguments actually live.

Contradicted sideproof
What credible sources say

PRIMARY Study of 650,000+ children — no link found ↗
01
The problem

Claims travel faster than anyone can check them.

A confident sentence spreads in minutes, while verifying it takes hours — and usually lands a day later, in a different tab, on a site you'll never visit. By then you've already moved on.

02

The evidence comes to you.

STEP 01

Claims get underlined

As you read, sideproof marks the sentences that make a checkable factual claim. Detection runs locally — the page just gets a dotted underline.

STEP 02

Click the one you doubt

No dashboard, no copy-paste, no new tab. Click the underline and the evidence opens right beside the sentence.

STEP 03

See receipts & the other side

sideproof pulls live news and primary sources, lays out what they say, shows the counterpoint, and links every one — graded by quality.

03

A nutrition label for information.

No one-word verdict. Just the claim, what the evidence says on each side, and where to check it yourself. Try a few real examples →

Pick a claim
{{ card.status }} sideproof
What's really being claimed

{{ card.claim }}

What credible sources say

{{ b.text }}
OTHER SIDE

{{ card.note }}
Sources

No sources to show — nothing factual here to check. sideproof flags it so an opinion isn't read as established fact.
■ PRIMARY■ NEWS■ OTHER■ SOCIAL
04

Evidence, not a verdict.

Context, not a verdict

You get the claim, what's actually being asserted, and the strongest evidence on each side. The judgment stays yours.

Real receipts

Every point links to a real, working source — primary documents and major outlets first. Citation-free claims and dead links get dropped.

Source quality, graded

It tells a national paper from an anonymous blog, and a primary study from a summary of a summary — across regions and languages.

Works where you read

News sites, articles, and social feeds. The evidence layer rides along on the open web — not locked in a separate app.

05
Trust & privacy

An evidence tool has to be trustworthy itself.

So we built it to ask for as little as possible — and to be honest when it doesn't know.

01
Your browsing isn't the product
We don't sell or broker your browsing data. Not to advertisers, not to anyone.
02
Detection runs locally
Spotting claims happens in your browser. Only the claim you click is sent off to gather sources — never your whole history.
03
No ads, no injection
sideproof never inserts ads or sponsored "sources" into the pages you read.
04
Honest about uncertainty
When the evidence is thin, it says "I don't know" instead of bluffing a verdict.
06

Straight answers.

{{ f.a }}

See the claim, the receipts, and the other side.

Add to Chrome
FREE · WORKS WHERE YOU ALREADY READ