Sylan Node

A minimal, production‑ready node that:

• Watches APIConsensus.RequestRegistered
• Pulls provider snapshot (HTTP)
• Verifies EIP‑712 (provider signature)
• Optionally pins payload to IPFS
• Submits snapshot
• Opportunistically calls finalize near/after expiry+grace

Quick start

cp .env.example .env
# Fill in RPCs, CHAIN_ID, CONSENSUS_ADDR, REGISTRY_ADDR, PRIVATE_KEY, IPFS/Pinata config & PROVIDER_BASE_URL
npm i
npm run dev

Docker

docker build -t sylan/node .
docker run --rm --env-file .env sylan/node

Operability

• Health: GET /healthz (200 OK when event loop active)

• Logs are JSON (pino) with levels

• Graceful shutdown on SIGINT/SIGTERM

Security

• Use a dedicated EOA for node ops

• Keep PRIVATE_KEY out of docker‑compose files checked into git

• Rate limit provider fetch; random jitter to avoid thundering herds