Proof-of-Useful-Work · GPU mining

Pearl Mining Calculator

Estimate PRL mining rewards with the exact block-subsidy formula from the Pearl node source (CalcBlockSubsidy in node/blockchain/validate.go) — no guesses, no made-up numbers. Enter your share of network useful work, or pull live figures from your own pearld node.

Block target3m 14s

Blocks / day~445.4

Max supply2.1B PRL

Coinbase maturity100 blocks

Reward calculator

Block height Height the subsidy is computed at. Fetch from a node or type one.

Your hashrate Unit

Network hashrate Unit

PRL price (USD) optional

Rig power (W) optional Electricity ($/kWh) optional

Rewards scale with your share of network useful work. On Pearl, mining is GPU matrix-multiplication work via vLLM — the networkhashps figure from getmininginfo is the network's estimated useful-work rate.

Block subsidy at height — — PRL per block (exact formula)

Your share—

Blocks / day (you)—

PRL / day—

PRL / week—

PRL / 30 days—

PRL / year—

Estimates only: difficulty retargets (WTEMA), the subsidy decays every block, and transaction fees are not included. Not financial advice.

Emission schedule

Subsidy(h) = 2.1B × 650226 ÷ ((h + 650226)(h − 1 + 650226)) — verified against CalcBlockSubsidy and the upstream emission tests (h=1 → 3229.64 PRL, h=650226 → 807.41 PRL).

Subsidy milestones

Height	Approx. date	Subsidy (PRL)	Note

Dates assume a constant 194 s block time from genesis — indicative only. Milestone subsidies are computed live on this page with the exact formula.

Live node data

Point the calculator at your own pearld JSON-RPC endpoint. It reads getblockcount (fills block height) and getmininginfo (fills network hashrate + difficulty). Credentials stay in your browser's localStorage — nothing else leaves this page.

RPC URL RPC user RPC password

Best height—

Network hashrate—

Difficulty—

Live subsidy—

RPC is disabled on pearld unless rpcuser/rpcpass are set. Browsers block plain-HTTP calls to a node from an HTTPS page — run this page locally (python3 -m http.server) or front the node with the upstream node/proxy Caddy sidecar for TLS.

How Pearl mining works

⚙ Useful work, not busywork

Pearl replaces hash grinding with Proof-of-Useful-Work: miners run real matrix multiplications as a by-product of LLM inference (vLLM + NoisyGEMM CUDA kernels). The work is useful and secures the chain. Paper: arxiv.org/abs/2504.09971.

💻 Hardware

The reference miner is a vLLM plugin. It needs an NVIDIA GPU (currently sm90 — H100 / H200), CUDA toolkit, Python 3.12 and uv. Source: miner/ in pearl-research-labs/pearl.

🔒 ZK-PoW certificates

Blocks carry ZK-PoW certificates (Plonky2/STARKy) that prove the useful work was done. Since the salted-seed hard fork (mainnet height 99000), getblocktemplate reports requiredcertversion: 3 — miners must submit V3 salted noise-seed certificates.

⏱ Payout rhythm

One block every ~3m14s → ~445 blocks/day. Coinbase outputs mature after 100 blocks (~22.5 hours) before they can be spent. Difficulty retargets with a WTEMA filter, so network growth smoothly raises difficulty.

Quickstart (from the upstream miner README)

git clone https://github.com/pearl-research-labs/pearl && cd pearl
uv sync --package vllm-miner        # builds pearl-gemm CUDA kernels
# point the miner at your pearld via pearl-gateway, then run the vLLM plugin

Full build + test instructions live in the upstream miner/README.md. Docker one-click images exist from the community (see the ecosystem survey) — verify any third-party image before trusting it with your keys.

Support this work

Built by @kshot9000 for the Pearl community.

prl1p62v09vuzyd8kdz9l23jaf3kph4wwx6jqcmhkkhg8lhr2qlxky8psu3zw9d