TrustChain turns every agreement into a protected record with verifiable proof — so when a client won't pay, you have something stronger than a screenshot or a promise.
Your negotiation stays end-to-end encrypted — even we can't read it. Your proof is locked on a public blockchain — and no one can rewrite it. Not the other party. Not us.
What a protected record looks like
Agreement Record
On-chain fingerprint
keccak256: 0x71c1ab8f…be7d136
Permanently anchored on Polygon — independently verifiable by either party.
The Problem
In 2026, you can verify a payment in seconds, track a parcel across the planet, confirm a passport at a border. The world runs on standards. But a deal between two people — the kind that decides whether you get paid for a month of work — still lives as a screenshot, a text thread, and a hope that the other side remembers it the way you do.
Most agreements sit as files inside platforms you don't control. They can be edited, deleted, or replaced — often without a trace. And when money is on the line and the story suddenly changes, there's no independent record to point to. It comes down to your word against theirs. That isn't proof. That's a coin flip.
How It Works
01
Negotiate privately
Work out the terms in a chat that's end-to-end encrypted. The keys live on your devices, not on our servers — so the conversation can be read by exactly two people: you and the other party. Not even us. Trust starts here: a private room no one else can walk into.
02
Create the record
Both parties lock in the terms. The agreement is structured, timestamped, and linked to your TrustChain identity — and once you verify through SumSub, to a KYC-checked one. No anonymous handles hiding in the dark.
03
Sign and lock
Each party signs digitally, and a cryptographic fingerprint of the exact text is generated. Change a single character later and the fingerprint comes out completely different — so tampering has nowhere to hide.
04
Verify at any time
Either party can present the original text and check it against the stored fingerprint. A match is mathematical proof the document is unchanged.
Built-in AI Advisor
Paste a clause or describe your deal. The AI explains it in plain language, flags hidden risks, and rewrites weak wording — right inside TrustChain.
"Late payment penalty of 2% per month" — this clause compounds monthly. On a 3,000 USD invoice unpaid for 90 days, you'd be owed about 183 USD extra…
You · Follow-up 1
What if the client is in another country?
Explain any clause
Plain-language breakdown — know what you're agreeing to.
Catch hidden risks
Ambiguities and missing protections — flagged before you sign.
Ask, refine, revisit
2 free follow-ups per answer, every conversation saved to History.
Try it free — 3 AI Advisor requests every month, no card required.
Try It Yourself
Real keccak256 hashing, live in your browser. Edit the right side and watch the fingerprint break.
This demo runs entirely in your browser — nothing here is uploaded or stored. It's the same keccak256 your real records are fingerprinted with.
TrustScore
Every person on TrustChain carries a TrustScore — a public, blockchain-backed measure of how reliably they keep agreements. Honest people build a record that speaks for them. Everyone else can see exactly who they're dealing with.
How the score is built
Earned through verified actions, not bought.
A verified email, a completed identity check, and every agreement you finish and anchor. Completing the whole set earns a final bonus.
Account created, nothing verified yet
Identity verified, or first agreements on record
Verified identity and a real record of completed deals
A long record of completed, anchored agreements
The full trust set — identity, completed deals, anchored proofs
Before you sign, you can see the other party's TrustScore and tier. A verified, high-score counterparty is a signal you can rely on — no more dealing with total strangers in the dark.
Every completed agreement raises your score. Verifying your identity unlocks higher tiers. Disputes and broken deals lower it. Over time, your record becomes your reputation — and it follows you.
Why It Matters
The value of a protected agreement isn't felt until something goes wrong. The day a client decides not to pay, everything flips. The side holding verified proof has an asymmetric advantage: a record that's unambiguous, timestamped, and independently verifiable — one that doesn't bend to whoever argues louder or hires the better lawyer.
No arbiter needs to decide which side is telling the truth. The fingerprint either matches — or it doesn't.
Plans
Every plan includes encrypted negotiation and the private registry.
Free
$0
1 protected agreement, 3 AI requests — every month, no card.
Pro
$19/mo
20 agreements, 50 AI requests, blockchain anchoring.
Elite
$49/mo
100 agreements, 300 AI requests, premium public proof.
Your work is real. Make the proof just as real.
Protect your first agreementTrustChain — the registry of record for digital agreements