Guardian402

ERP-agnostic by design — TOTVS Protheus is the reference market

TOTVS is Brazil's largest business-software company. Its flagship ERP, Protheus, is widely used by Brazilian firms to issue and manage boletos (bank payment slips). In the latest FGV-Eaesp IT survey, TOTVS holds about 34% of Brazil's overall ERP market (tied with SAP) and about 50% among smaller deployments (up to ~180 users) - which makes it the natural reference case for demos in Brazil. Guardian402 itself does not require Protheus: the same hash-based check works for boleto data from any ERP, billing system, or agent that sends the expected fields.

Source: FGV-Eaesp Annual IT Use Survey (Brazil ERP market share).

From ERP boleto to on-chain proof

Companies and agents need an independent integrity check before trusting a boleto. Guardian402 turns that check into a measurable Stellar payment.

1. Context: a boleto from any ERP or agent - TOTVS Protheus included - needs an independent integrity check before trust or payment.
2. MVP: hash-based verification against a Soroban registry, protected by x402 exact payments in USDC on Stellar Testnet.
3. Roadmap: native Protheus consumption of the same endpoint - agents and ERPs pay only for the checks they run.

Lane: Payments and Agent Tooling / SDF DevEx / Agentic Payments (x402)

How payment meets proof

One verification - from any ERP or agent - is one measurable USDC payment.

1. Call POST /v1/verify with boleto fields (as an ERP or agent would)
2. Receive HTTP 402 with x402 payment instructions
3. Authorize and settle 0.01 USDC on Stellar Testnet
4. Read AUTHENTIC, MISMATCH, NOT_FOUND, or REVOKED from Soroban

Live on Stellar Testnet

Contract and demo records are already deployed for the Summit demo.

Verification outcomes

• AUTHENTICData matches the active integrity proof registered on-chain
• MISMATCHIdentifier exists, supplied boleto data diverges
• NOT_FOUNDNo proof registered for that boleto identifier
• REVOKEDProof existed and was revoked by the issuer admin

Guardian402 verifies whether supplied boleto data matches a previously registered integrity proof. It does not confirm bank settlement or payment status.