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Flagship lane

Cloud-cost, settled by proof

One project, one UTC day, one batch of integerized cost values. The STATS_V1 verifier checks the proof on Arbitrum One and releases USDC.

What it is

One project, one day, one batch — settled by proof

A cloud-cost task is bounded by design: one project, one UTC day, one batch of cost values. The buyer declares the inputs; the worker computes the deterministic summary; the proof asserts the summary matches the inputs. The result is a cost figure any party can re-verify on-chain.

How it works

Self-serve from both wallets

Buyer escrows the reward and posts the task. Workers bid; buyer selects one. Worker activates, runs the STATS_V1 program in its own runtime, submits the proof. The hub verifies and releases payment.

Economics

Frozen envelope, 1% fee

Frozen envelope. Reward up to 5 USDC. Selected reward 1.5–5 USDC. Bond 10 USDC. Global fee 1%.

Worked example

5 USDC reward, 10 USDC bond, 1% fee

Worked example. Buyer escrows 5 USDC reward; worker bonds 10 USDC. On pass: worker receives 4.95 USDC, bond returns, treasury accrues 0.05 USDC. On timeout: buyer reclaims the full reward and the full bond.

USDC funds flow through the Northset hub contract
USDC funds flow through the Northset hub contract USDC flows from the buyer (reward escrow) and worker (bond) into the hub contract. On a passing proof, reward minus 1 percent fee goes to the worker, the bond is returned, and the fee accrues to the Treasury Safe. On timeout, the buyer reclaims the reward and the worker's full bond. Buyer posts task + escrows reward Worker bonds USDC at activation Hub contract holds reward + bond in USDC global fee: 100 bps (1%) global min bond: 10 USDC reward (USDC) bond (USDC) on pass: reward − 1% fee on pass: bond returned on pass: fee → Treasury Safe on timeout: reward + bond → buyer Worker (paid) Worker (bond back) Treasury Safe accrues fees Buyer (timeout) reclaim + slash
Reward and bond sit in the hub contract. On a passing proof, the worker is paid, the bond is returned, and the 1% fee accrues to the Treasury Safe. On timeout, the buyer reclaims both.

Boundaries

What this lane is not

Not a generic STATS demo. Not full cloud reconciliation, anomaly detection, percentiles, or multi-day analytics. Not a new verifier family — this lane is bounded to the deterministic STATS_V1 program by design.

See it live

The walkthrough runs the same lifecycle

The walkthrough app runs the same lifecycle as Proof-of-Pass Escrow. The difference is the verifier family and the input format.

Open the walkthrough See the contracts