Pool just launched payouts may arrive less often than every 4 hours — hashrate is still low, so blocks are found rarely
Big hashrate? 1.5–2% fee
… miners online Fee 3% · PPLNS Telegram RU / EN

Frequently asked questions

Everything about connecting, shares, payouts and the pool. Can't find an answer — ask in Telegram.

Getting started

How do I connect my miner?

Use the official Pearl miner Docker image:

docker run -d --gpus all --restart unless-stopped \
  --name mineprl --network host \
  -e PEARL_ADDRESS=YOUR_PRL_ADDRESS \
  -e PEARL_WORKER=rig1 \
  -e PEARL_POOL_HOST=blackpearlpool.xyz \
  -e PEARL_POOL_PORT=5566 \
  alphaminetech/pearl-miner:latest

Replace YOUR_PRL_ADDRESS with your Pearl wallet address and rig1 with your worker name.

Which GPUs are supported?

Pearl uses Proof-of-Useful-Work based on matrix multiplication (NoisyGEMM). NVIDIA GPUs with tensor cores are supported:

  • RTX 3000 series and newer
  • RTX 4000 series
  • RTX 5000 series (including RTX 5090)
  • Professional cards: A100, H100

AMD and Intel GPUs are not supported.

What is the pool server address and port?

Stratum server: blackpearlpool.xyz:5566

Shares & Stats

Why don't I see my shares?

A few possible reasons:

  • Just connected — stats update every 30 seconds.
  • Wrong address — make sure PEARL_ADDRESS is a valid PRL address (starts with prl1).
  • Missing --network host — required for Docker; without it the miner can't send 368KB proofs.
  • Firewall — outbound TCP port 5566 must be open.
What is a share?

A share is a proof of work (PlainProof) submitted by your miner to the pool. Each share proves that your GPU completed a matrix multiplication computation. One share is approximately 368 KB.

What is PPLNS?

PPLNS (Pay Per Last N Shares) is a reward distribution method. When the pool finds a block, the reward is split among all miners proportionally to their shares in the last 10 000 shares (sliding window). The more shares you submitted in this window, the larger your portion.

PPLNS protects against pool-hopping (connecting only when a block is about to be found).

How is my share rate counted?

The dashboard shows your share count for the last hour. Pearl doesn't use traditional hashrate in TH/s — one RTX 5090 produces roughly one share every few seconds depending on network difficulty.

Payouts

When will I get paid?

Payouts run automatically every 4 hours. Your balance must be at least 0.5 PRL. If it's less, it carries over to the next cycle.

⚓ The pool just launched: while total hashrate is still low, blocks are found rarely, so the first payouts may arrive less often than every 4 hours. As the pool grows, payout frequency will get closer to schedule.

Why is my balance not growing?

Balance is credited only when the pool finds a block and receives a reward. A zero balance after connecting is normal. Once the pool finds a block, your PPLNS share will be credited automatically.

Which address receives my payouts?

Payouts are sent to the address you set in the PEARL_ADDRESS variable when starting the miner. Make sure it's correct — it cannot be changed after shares have been credited.

Where can I trade PRL?

Pearl (PRL) is traded on SafeTrade in the PRL/USDT pair.

About the pool

What is the pool fee?

3% — one of the lowest fees on the Pearl network.

Miners with large hashrate get special terms — 1.5–2%. Message us on Telegram to arrange a personal rate.

What is Pearl (PRL)?

Pearl is a Layer-1 blockchain with a Proof-of-Useful-Work (PoUW) consensus mechanism. Instead of computing meaningless hashes (like Bitcoin), Pearl miners perform real matrix multiplications that can be used for AI workloads. Mainnet launched in April 2026.

How do I contact support?

Telegram: @Black_Pearl_Pool
We respond within a few hours.