x402 · Base Sepolia
Proofwork
x402 proves the money moved. It proves nothing about whether the service was delivered.
Proofwork is the missing half of the transaction — a proof-of-delivery layer for x402. Live expert guidance is sold per call, and every session ends in a certificate showing paid and delivered, both independently verifiable on-chain.
Technician
On-site. Shares the live camera and completes the service step.
Expert
Remote. Watches the feed and drops annotations to guide the work.
x402 payment flow
Settled on-chain
Attestation contract
0x7408…a8B4
Network
eip155:84532
The golden path
- 1Technician joins — the on-site camera goes live.
- 2Expert joins — sees the feed and clicks to place a marker.
- 3The marker appears in the technician's view in real time, over the data channel.
- 4Technician taps Step complete — the record is hashed and written on-chain by a pre-funded relayer.
- 5A Proof-of-Service certificate renders with a live block explorer link.