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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