Crown (CRW) SHA256/SHA256d Mining Pool Setup — Payments‑First Deployment

A Crown pool on SHA256/SHA256d succeeds when the “boring” parts are correct: synced nodes, predictable difficulty behavior, and safe payouts. Below is our operator‑focused checklist for launching and maintaining a CRW pool.

CRW pool setup: think like a payments operator

For Crown, the technical work is only half the job. The other half is running a wallet and payout process that miners can audit. A good CRW pool makes share crediting, fee policy, and payment timing easy to explain.

• Pool posture: public pools need anti‑abuse controls; private pools need tight access management and clear payout rules.
• Accounting clarity: define how shares turn into balances, how fees are applied, and how you’ll handle edge cases (stales, rejects, and blocks that don’t mature).
• Wallet containment: treat the CRW payout wallet as a production key system—restricted hosts, backups, and an operator-only recovery plan.
• Miner experience: publish one canonical worker format and keep error messages actionable (bad address, banned IP, wrong port).

CRW engine choice: when Yiimp wins and when Miningcore wins

CRW can run on either Yiimp or Miningcore; the choice is about operations. We align the core engine to your preference for UI workflows versus service separation and API integration.

• Yiimp-based: Pick this if you want the familiar web dashboard and classic pool UX; Yiimp setup guide gets you running quickly with a proven layout.
• Miningcore: A strong choice for an API-first pool with clean services; use the Miningcore setup guide path when you value predictable performance and integrations.
• Custom stack: Use this for non-standard requirements such as custom ledgering, external billing, or specialized miner authorization.

CRW build deliverables: from node hardening to UI

• CRW node layer: daemon installation, supervised services, and RPC exposed only to pool components.
• Pool core + database: share accounting tables, block tracking, and retention tuned to your CRW traffic profile.
• Stratum endpoints: port roles, VarDiff (variable difficulty) tuning, and connection/banning policy with clear miner docs.
• Payout pipeline: batching, audit trail, and payout model choice; references include payout schemes and how to choose SOLO vs PPLNS vs PROP.
• Website UI: branded pages, miner accounts, worker stats, payments, and an ops status view.
• Security hardening: backups, secret rotation, network controls, and monitoring playbooks (see security hardening).

We validate CRW payouts in a closed environment first, then open access in phases (private → limited public → fully public) so you can observe behavior safely.

CRW miner URLs, ports, and documentation pattern

Keep your miner “quick start” short and correct. A single tested example is worth more than five unverified configurations.

stratum+tcp://POOL-DOMAIN:3333
stratum+ssl://POOL-DOMAIN:3443

For support efficiency, document what happens on each port (low‑diff onboarding vs high‑hashrate) and show the exact worker format you accept.

CRW-specific operating notes: wallets, payouts, and risk controls

• Payout batching: design batches that keep wallet history readable and avoid runaway output growth.
• Hot/cold split: keep operational funds online and keep long-term reserves in a separate, recovery-focused path.
• Incident drills: write down steps for node stalls, wallet locks, and payout retry scenarios before launch.

CRW launch gate checklist (what must be true before public mining)

• CRW daemon synced and restart-safe; monitoring confirms tip height advances normally.
• RPC reachable only from pool services; credentials stored in a secret manager or locked file permissions.
• Stratum tested with multiple miners; VarDiff and bans behave as expected under reconnect storms.
• Share accounting verified; database backup and a restore drill completed.
• Payout flow validated end-to-end with a small test cycle and reconciliation against the ledger.
• UI and API expose the same balances and payment history; status page reflects actual component health.
• A staged rollout plan exists (invite-only first, then public) with on-call notes for launch day.

CRW pool FAQ: practical deployment questions

Want a CRW deployment scoped properly? Contact us with your traffic expectations and whether you prefer a full UI or API-only ops.