Reads the contract. Judges the proof. Negotiates. Settles on Hedera.
Testnet · Live
Operator0.0.9067781
ViewA real end-to-end run, frozen from captured Hedera artifacts — replays instantly.
The problemStep 1 of 9
Brands spend ~$30B a year on store promotions. Proving they happened is done by hand.
A brand pays a retailer to run a promotion — an end-cap, a display tower. Before any money changes hands, someone has to confirm the store actually did it, against a contract written just for that deal. Today that's manual: settlement drags 60–120 days and disputes resurface years later. PromoProof is an AI agent that does it in seconds — and makes every decision provable.
This demo has two lanes: a cached anchor from a successful end-to-end run, and a live sandbox that calls the LLM and Hedera testnet when quota is available. Settlement is in pUSDC, a USD-pegged demo token; HBAR only pays network fees.
The claimStep 2 of 9
One claim: a contract, a proof photo, and the retailer's word.
Here's what lands on the desk. A bespoke promotion contract in plain legal prose, an in-store photo as proof, and the retailer's short narrative claiming they complied. Every retailer's contract is different — which is exactly why this is slow and manual today.
Proof photo · the evidence
Analyst submission
Retailer_W · Brand_C Seasonal FSDU
Front-of-store seasonal display · Mar 23 - Apr 20, 2026
Contract0.0.9104996
Max settle25 pUSDC
ClaimCLM-2026-05-CLEAN
“Cadbury Easter FSDU placed in a front-of-store actionway with full Easter signage and a prominent Creme Egg presentation. The display ran across the Easter selling period. Requesting settlement of the co-op marketing fee.”
It reads & judgesStep 3 of 9
The agent reads the contract, then judges the photo against it.
The agent reasons in phases — observe the photo, pull out each contract requirement, reconcile them, decide — and a second, independent model double-checks the verdict before anything can move. Below is the cached anchor: a successful run replayed instantly. Flip the switch to the Live testnet sandbox at the top to watch the agent make these same Agent Kit calls live.
Cached anchor
A real run replayed from captured Hedera artifacts
After evidence
cached prooffrozen from a successful run; switch to the Live testnet sandbox above to watch fresh Agent Kit calls
Hedera Agent Kit v4 pluginadjudicate_claim, compute_settlement and propose_settlement are custom tools exposed through the Hedera Agent Kit. The live sandbox also surfaces core non-query Hedera Agent Kit tools for proof-only ledger artifacts.
The verdictStep 4 of 9
Judgement, not OCR — every finding cites a clause and points to the photo.
This is the part that's hard to fake. For each requirement, the agent gives a met / partial / unmet call, cites the exact contract clause it's judging against, and shows you where in the photo it saw the evidence — hover any finding to light up its spot. Its confidence and the second model's agreement sit right alongside.
Boxes are the model's own visual grounding — hover a criterion below to isolate where it was observed.
Criteria · clause-by-clause finding
✓ 4/4 citations verified
RefRequirementStatusObserved in photoConcern
Section (a)
Display live between March 23 – April 20, 2026
Indeterminate
The photo clearly shows the display is set up, but there is no date stamp or visible metadata to confirm the specific timing within the window.
The photo lacks a timestamp; the contract requires verification of duration.
Section (b)
Freestanding seasonal display unit (FSDU)
Met
A prominent circular freestanding display unit is positioned in the actionway.
—
Section (c)
Prominent Cadbury Easter range presentation
Met
Cadbury Easter egg products are clearly stocked on the FSDU shelves.
—
Section (d)
Easter-themed signage with Cadbury mark
Met
Branded Cadbury signage featuring Easter thematic elements is displayed on the FSDU header.
—
Section (a)Indeterminate
Display live between March 23 – April 20, 2026
Observed
The photo clearly shows the display is set up, but there is no date stamp or visible metadata to confirm the specific timing within the window.
Concern
The photo lacks a timestamp; the contract requires verification of duration.
Section (b)Met
Freestanding seasonal display unit (FSDU)
Observed
A prominent circular freestanding display unit is positioned in the actionway.
Section (c)Met
Prominent Cadbury Easter range presentation
Observed
Cadbury Easter egg products are clearly stocked on the FSDU shelves.
Section (d)Met
Easter-themed signage with Cadbury mark
Observed
Branded Cadbury signage featuring Easter thematic elements is displayed on the FSDU header.
Reasoning summary
“The retailer has successfully executed the physical setup of the display, meeting location, product presentation, and theming requirements (Sections b, c, d). However, per Section (a) and (e), the photo does not confirm the display was live during the contracted window. Consequently, the claim is put on hold pending temporal verification.”
Issued by PromoProof · model adjudicatorManual review · request more evidence — reviewer
It negotiatesStep 5 of 9
When the proof falls short, it asks for exactly what's missing — it doesn't just reject.
One clause couldn't be settled from the photo alone. Instead of guessing or denying, the agent asked the retailer for the single piece of evidence that would resolve it. They supplied it, and the agent re-judged — updating only the clause that changed. That's a negotiation, not a rubber stamp.
Negotiation · evidence requested
Please provide a point-of-sale timestamp, a dated compliance report, or an additional photo containing a visible date (e.g., a store receipt or newspaper) to verify the display was active during the March 23 – April 20, 2026 window.
Analyst reply · 14:28 UTC
“Attached: POS log {2026-04-04 → 2026-04-16}, signed compliance report PDF (dated 2026-04-20). Display ran 12 of 29 contracted days.”
Boxes are the model's own visual grounding — hover a criterion below to isolate where it was observed.
Criteria · clause-by-clause finding
✓ 4/4 citations verified
RefRequirementStatusObserved in photoConcern
Section (a), (f)
Display live for the full four-week period (March 23 – April 20, 2026).
Partial
The photo does not contain a date stamp. Follow-up POS scan logs confirm the display was live from March 30, 2026 to April 20, 2026 (3 weeks).
The display was not active for the full contracted window of four weeks; it was active for three weeks.
Section (b)
Freestanding seasonal display unit (FSDU).
Met
A circular, multi-tiered FSDU is positioned in the center of the aisle.
—
Section (c)
Prominent presentation of Cadbury Easter range.
Met
Cadbury branded Easter products are clearly visible on the FSDU tiers.
—
Section (d)
Easter-themed signage bearing the Cadbury mark.
Met
Easter-themed signage featuring the Cadbury logo and 'Salted Caramel' branding is attached to the unit.
—
Section (a), (f)Partial
Display live for the full four-week period (March 23 – April 20, 2026).
Observed
The photo does not contain a date stamp. Follow-up POS scan logs confirm the display was live from March 30, 2026 to April 20, 2026 (3 weeks).
Concern
The display was not active for the full contracted window of four weeks; it was active for three weeks.
Section (b)Met
Freestanding seasonal display unit (FSDU).
Observed
A circular, multi-tiered FSDU is positioned in the center of the aisle.
Section (c)Met
Prominent presentation of Cadbury Easter range.
Observed
Cadbury branded Easter products are clearly visible on the FSDU tiers.
Section (d)Met
Easter-themed signage bearing the Cadbury mark.
Observed
Easter-themed signage featuring the Cadbury logo and 'Salted Caramel' branding is attached to the unit.
Reasoning summary
“The retailer successfully executed the display requirements, including the use of an FSDU, proper product placement, and themed signage. However, as established by the point-of-sale scan log and compliance report provided in the follow-up evidence, the display was only active for three weeks of the four-week contract window. Pursuant to clause (a) and the pro-rata provision in clause (f), the settlement is adjusted to 75% of the maximum 25 HBAR, resulting in a payment of 18.75 HBAR.”
Issued by PromoProof · model adjudicatorManual review · partial credit — reviewer
Recorded, privatelyStep 6 of 9
Why this lives on Hedera, and not just in a database.
The instant it decides, the verdict is sealed. But look at what's public versus private. Everything sensitive — the contract, the photo, the amount, the reasoning — stays encrypted on our side. The only thing written to Hedera is a one-way fingerprint of the decision and a timestamp.
No plaintext amounts, parties, or reasoning — ever.
On-chain vs your databaseA database row can be quietly edited or backdated by whoever owns it. This record can't — not by us, not by anyone. That's the difference Hedera makes.
Provable to anyoneStep 7 of 9
Prove the result and the reasoning against that public record — and reveal nothing else.
Here's the payoff. Years later, in a dispute, you can take selected lines of the private file — the decision, economics, and the agent's reasoning logic — and prove they're genuine and unaltered against the fingerprint on Hedera. The contract and the photo never have to leave your vault. Sealed in public, provable on demand, confidential always.
Selective disclosure · prove one fact, reveal nothing elsescope: counterparty
🔒Private off-chain dossier · the fields you choose to reveal
Decisionpartial creditsalt ad3135d6…1d4f
Credit %75salt 3b5bf981…e893
Contract max25salt e63dc3a0…fcb6
Reasoning / logicThe retailer successfully executed the display requirements, including the use of an FSDU, proper product placement, and themed signage. However, as established by the point-of-sale scan log and compliance report provided in the follow-up evidence, the display was only active for three weeks of the four-week contract window. Pursuant to clause (a) and the pro-rata provision in clause (f), the settlement is adjusted to 75% of the maximum 25 HBAR, resulting in a payment of 18.75 HBAR.salt 8130ca90…4b76
Every other field — the full contract, the photo’s hash, the model prompt, each clause finding — stays sealed off-chain. Their salts are never revealed.
The contract and the photo never leave your vault. The disclosed result fields and the agent’s reasoning/logic block provably belong to the record anchored on Hedera at seq #2.
Settled safelyStep 8 of 9
The money moves only when both sides sign — the agent can't touch it.
Now payment. The agent proposes the transfer, but it holds no key that can release funds. The money moves only once the brand and the retailer both sign on-chain — enforced by Hedera itself, not by our code. On execution, an attestation NFT is minted as the receipt.
The agent proposed this payout as a Hedera Scheduled Transaction. It executed only once both parties signed on-chain — the brand authorized the spend, the retailer accepted. No single key, and not the agent, could release the funds.
✓Executed by Hedera on both signatures — 18.75 pUSDC settled to the retailer.attestation NFT #5
End to endStep 9 of 9
A real enterprise workflow, start to finish.
The agent read a bespoke contract, judged a real photo against it, negotiated for the evidence it needed, and settled value on-chain — every step provable, nothing confidential exposed. This run is live on Hedera testnet; the records below are real.
Everything above ran on Hedera testnet — the topic, token, accounts, and schedule all resolve on HashScan. Want to watch it happen? Switch to the Live testnet sandbox at the top: the agent reads a fresh contract, judges the photo, and writes proof-only artifacts to the ledger in real time.
