Attesting delivery

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An attester confirms that care actually happened. This is the most important role in the protocol and the one carrying the most responsibility.

What you are doing

When you attest, you start a 72-hour clock. When it runs out, the clinic is paid automatically and irreversibly, and you receive your configured share of the protocol fee.

You are not approving a payment request. You are asserting a fact about the world: this patient received this service at this clinic.

Who does this

Attesters are appointed by an administrator. In practice they are people already present in the care pathway and not employed by the clinic being paid — community health workers, supervising nurses at a different facility, NGO field staff, district health officers.

The point is independence. If the attester’s income depends on the clinic being paid, the safeguard does not work.

What you earn

The protocol pays the attester who confirmed delivery a configured share of its fee. The deployment sets attester_share_bps at initialisation (50 bps, half of the 1% fee, in the current configuration). It is carved out of the protocol fee, not out of the clinic’s net, and it is paid at settlement by the contract.

That payment is fixed by configuration and the contract. A clinic cannot set it, vary it, or offer more for a favourable decision. Treat it as protocol compensation for the attestation, never as a payment from the clinic, the patient or the funder.

How

1. Connect your wallet. The Attest page shows every voucher waiting.
2. Verify the care happened. However your programme does it — being present, checking the register, speaking to the patient.
3. Press Confirm care delivered.

What the contract enforces

• You cannot attest for a clinic you are. If the attester address matches the provider address, the call is rejected. Always, no exceptions.
• You must be an authorised attester. Revoked attesters are rejected.
• The voucher must be Claimed. You cannot attest before the clinic marks the patient seen, or twice.

What it does not enforce

That you are telling the truth. This is the protocol’s central trust assumption, documented plainly in the trust model.

What it does do: your attestation is signed by your address and recorded on chain permanently. Every voucher you have ever confirmed is public and attributable. There is no anonymous attestation.

Before you attest

Work through the attester evidence checklist and code of conduct every time: what to confirm before you press Confirm care delivered, and when you must step aside.

If you are unsure

Do not attest. An unattested voucher is not lost — it stays escrowed and refunds to the funder at expiry, or immediately if the clinic is no longer active. The failure mode of not attesting is a delay. The failure mode of wrongly attesting is a patient’s money going to a clinic that did nothing, with no way to get it back after 72 hours.

If you believe a clinic is claiming for care it did not deliver, tell an administrator so it can be suspended.