Verification benchmark

Check finished work in 3.7 ms instead of doing it again.

When one agent hands work to another, the next one either trusts it blindly or pays to redo it. With Proofable, the work comes with a receipt the next agent checks in milliseconds, for free.

All benchmarks

3.7 ms

To check a finished result. Redoing it: 2.79 s.

150/150

Forged records caught, offline, no account

3.3×

Cheaper per correct handoff than redoing the work

Every system tested.

Check the receipt3.7 ms
Redo the work2.79 s

Time to trust a finished result, lower is better

System	Result	Run by	Source
Check the receiptProofable, median of 10	3.7 ms	Proofable, median of 10	Run it yourself
Redo the workSame job, same model	2.79 s	Same job, same model	Method

Against the alternatives.

Time to trust a finished result
Check the receipt3.7 ms
Redo the work2.79 s
Trust the textInstant
AI tokens used
Check the receipt0
Redo the work2,426
Trust the text0
Cost per correct handoff
Check the receipt$0.024
Redo the work$0.078
Trust the text$0.009
Tampered handoffs caught
Check the receipt3 of 3
Redo the work–
Trust the text0 of 3
Forged records caught
Check the receipt150 of 150
Redo the work–
Trust the text0 of 150format check

Measure	Check the receipt	Redo the work	Trust the text
Time to trust a finished result	3.7 ms	2.79 s	Instant
AI tokens used	0	2,426	0
Cost per correct handoff	$0.024	$0.078	$0.009
Tampered handoffs caught	3 of 3	–	0 of 3
Forged records caught	150 of 150	–	0 of 150format check

Handoff dollars price the measured tokens at the Claude Sonnet 5.5 list rate. Trusting the text is cheapest until the text was changed in transit.

One identity check, reused by 100 apps.

Stripe Identity, $1.50 a check
Prove once with Proofable$1.75
100 apps each re-running it$150.00
Saving85× less
Sumsub Basic, $1.35 a check
Prove once with Proofable$1.60
100 apps each re-running it$135.00
Saving84× less
Veriff Essential, $0.80 a check
Prove once with Proofable$1.05
100 apps each re-running it$80.00
Saving76× less
Footprint KYC, $0.50 a check
Prove once with Proofable$0.75
100 apps each re-running it$50.00
Saving67× less

Measure	Prove once with Proofable	100 apps each re-running it	Saving
Stripe Identity, $1.50 a check	$1.75	$150.00	85× less
Sumsub Basic, $1.35 a check	$1.60	$135.00	84× less
Veriff Essential, $0.80 a check	$1.05	$80.00	76× less
Footprint KYC, $0.50 a check	$0.75	$50.00	67× less

Priced from each vendor’s published list price and Proofable’s $0.0025 per check. A pricing model, not a live run.

Check the results yourself.

Questions

What is a receipt?

A tamper-proof record of what an agent was asked, the rules it followed and what it produced. Anyone can check it on their own computer, without trusting Proofable. Change one character and the check fails.

Why not have another model grade the work?

A grading model costs tokens on every handoff and can be fooled by the same text that fooled the first agent. Checking a receipt takes 3.7 ms, costs nothing, and fails the moment anything was changed.

How were the forgeries made?

We took 15 real receipts and changed each one ten ways, from editing the content to swapping who owns it to flipping a single bit. All 150 fakes failed the check. All 15 originals passed.

Verify this run yourself

git clone --depth 1 https://github.com/proofable/docs
cd docs/public/evidence/checks
npm install
node tamper-check.mjs
node reuse-check.mjs

Put the same checks on your agents.

Connect an agent. Every action it takes is checked against your rules and leaves a receipt you can show anyone.

Start free

System

Result

Source

Check the receiptProofable, median of 10