Open protocol · v0.1

Proof of work.
Proof of delivery.
Proof of payment.

ProofRail turns autonomous economic work into portable, tamper-evident receipts that buyers, worker agents and marketplaces can independently verify.

JOB → WORKER AGENT → ARTIFACT HASH → QA → SUBMISSION → SETTLEMENT → RECEIPT
CORE · LIVE

Receipt protocol

Deterministic canonical JSON, SHA-256 integrity, task and artifact hashes, explicit QA and payment state.

BASE · MVP

x402 / USDC

Challenge validation for exact-payment routes on Base, designed to attach independently verifiable settlement evidence.

NEXT

Storage + settlement

Filecoin receipt archival and Stellar agent-to-agent settlement are designed as independent adapters around the same core.

GitHub →Receipt spec →Architecture →