Nexvow
Nexvow is a live smart contract product for service agreements. I designed and built the contract layer, settlement rules, and surrounding product flows so payments can move through explicit deadlines, signed resolutions, and dispute-aware outcomes instead of informal off-platform promises.
What I Built
Nexvow started as a cancellation insurance contract and evolved into a broader protected-payments product for service work. The system is built so both sides can see the rules up front: reserved funds, explicit deadlines, and a clear path for release, refund, or dispute.
On the implementation side, the contract layer combines access control, pausing, reentrancy-safe flows, exact token transfer checks, and signed resolution messages. Around that, I shipped a live UI, backend support services, and indexed read models so the system works as an actual product, not just a contract demo.
Project Links
Contract Design
CancellationInsuranceV1 manages policy creation, pooled liquidity, timed deadlines, and outcome-based settlement.
Supporting commitment contracts extend the product into escrow-style service agreements with explicit delivery and dispute paths.
Resolution uses EIP-712 signatures, replay-protected nonces, and role-based controls for safer off-chain decision authorization.
Product Surface
Live product surface at nexvow.org for creating and managing contracts.
Backend relayer and API routes for write actions and evidence flows.
Indexer and reporting layers for reading contract state in a user-facing way.
Why It Matters
Implements cancellation insurance and escrow-style settlement with timed deadlines, pooled liquidity, and deterministic payout paths.
Uses EIP-712 signed resolutions, nonce replay protection, role-based access control, pausability, and Foundry test coverage.
Ships as a real product with a live Next.js frontend, backend relayer endpoints, and indexer-backed contract views.