Pearl (PRL) · Proof-of-Useful-Work

Mine PRL and sell the inference from the same GPU.

One RTX 5090, Qwen3-Coder-30B, measured: 9,024 tok/s whole-card, 86 tok/s per request. Serves paid inference when there is demand, mines PRL when there is not. Serving pays in USDC.

SYNAP — the inference marketplace your GPU serves into.

1.5%
pool fee
PPLNS
fair, hop-proof payouts
+inference
the revenue no pool has
All GPUs
H100/H200 + consumer cards

Why Linkrra Pearl Pool

One GPU, two revenue streams: PRL mining plus paid inference.

Paid in stablecoin, not points

Serving revenue settles in USDC — you keep 80%. Mining pays in PRL, with a USDC option.

One card is enough

An RTX 5090 serving at 9,024 tok/s breaks even at 6.9% utilisation vs its median rent. Idle time mines PRL.

Every card welcome

Datacenter H100/H200 via the inference gateway; consumer 3090/4090/5090 via stratum.

Supported GPUs & hashrate

Every card here mines; any of them can also register as a serving node.

GPUPRL hashrateSource
NVIDIA H100743 TH/sMeasured
NVIDIA H200H100-classEstimate
RTX 5090350 TH/sMeasured
RTX 4090310 TH/sMeasured
RTX 309067 TH/sMeasured

Measured = our own single-card runs (2026-10-03/04). The H200 row is an estimate we have not verified.

Connect in 2 minutes

One GPU, one command, two payouts: inference in USDC, idle-time mining in PRL. Private beta — request access.

1

What you need

A 24 GB+ NVIDIA card on Linux · your PRL address (pool account, receives mined PRL) · your USDC address on Base (receives inference earnings) · an API key from the dashboard.

2

Run one command

# asks for the addresses and key from step 1
curl -fsSL https://pool.linkrra.com/install.sh | sh
3

The rest is automatic

Downloads the model (~17 GB), registers your node, serves paid requests when there is demand — and mines PRL when there is not. Paid work always preempts mining.

4

Where the money arrives

Inference → USDC on Base80% of what your card bills, to the USDC address from step 1 (confirmed once with a signed message before the first payout). Balance: GET /v1/earnings.
Mining → PRLTo your PRL address via normal pool payouts — PPLNS, 1.5% fee, 1 PRL minimum.

Mining only

Any supported GPU (3090 / 4090 / 5090 / RDNA2 / Arc), algorithm pearlhash — just your PRL address, no registration.

SRBMiner-MULTI --algorithm pearlhash \
  --pool stratum.linkrra.com:5567 \
  --wallet <your-prl-address> --worker rig1

Simple, transparent fees

1.5%
pool fee (1.0% base + 0.5% tx reserve)
1 PRL
minimum payout
PPLNS
payout scheme
Live
fee & reserve transparency