SoloLuck Blog · 2026-06-30
SoloLuck is a true-solo pool: you mine to your own Bitcoin address, so when you find a block the full reward — the 3.125 BTC subsidy plus that block's transaction fees — is paid straight to your address by the block itself, minus a 2% fee that only ever applies when a block is actually found (no block, no fee). The pool never holds your coins. You connect your miner to one of four stratum ports on the host stratum.sololuck.io (also 148.230.98.87):
:3333 — Lite: difficulty floor 1,024 (small ASICs, ~0.5–5 TH/s, e.g. a Bitaxe):8081 — Standard: difficulty floor 131,072 (mid rigs, ~2–200 TH/s):4334 — Pro: difficulty floor 1,048,576 (big or rented rigs, 200 TH/s+):3335 — Nano: difficulty floor 1 (CPU or tiny sub-10 GH/s miners):3334 — TLS: an encrypted version of stratum (more on this below)The names are just shorthand for who each port suits. The real difference between them is one number: the difficulty floor.
Your miner doesn't send every hash it computes to the pool — that would be billions per second. Instead it sends a share: a hash that clears a much easier target than a real block. Share difficulty is how hard that easier target is, and the pool uses your shares to estimate your hashrate and power your stats.
SoloLuck runs vardiff (variable difficulty): ckpool automatically tunes each miner's share difficulty so you submit roughly one share every few seconds. Too-easy shares flood the pool; too-hard shares arrive so rarely your stats look dead. Vardiff hunts for the sweet spot for your hashrate.
Every miner starts at a global startdiff of 4,000. A port's floor is simply the lowest difficulty vardiff is allowed to use for you. On Lite and Nano (floors below 4,000) you start at 4,000 and vardiff can fall toward the floor; on Standard and Pro (floors above 4,000) you start right at the floor. There's no upper cap — vardiff raises your difficulty as high as your hashrate warrants.
Here's the part that trips people up. In solo mining, your share difficulty has zero effect on your chance of finding a block. A block is found when your miner produces a hash below the network target — a check Bitcoin does independently of whatever share difficulty your pool happens to set. Choosing the Pro port over Lite does not make a block more likely by a single hash.
So what does the port change? Only how often you submit shares, which drives your stats, your vardiff, and your "best share" number. That's it. A higher-difficulty port means fewer, chunkier shares; a lower one means more, smaller shares. Same hashrate, same odds, a different-looking dashboard.
If you remember one thing: match the port to your hashrate for clean stats, not for better luck. Anyone who tells you the Pro port "earns more" in solo is mistaking a stats setting for a lottery ticket.
Pick the port whose floor roughly fits how fast you hash. That keeps your share rate sensible — frequent enough to feel alive, not so frequent it's just noise.
:3333 Lite. Plenty of shares, responsive stats.:3335 Nano. The floor of 1 lets even a CPU submit shares it can actually find.:8081 Standard.:4334 Pro. The high floor stops a fast miner from drowning the pool in tiny shares.Your username stays the same on every port: bc1qexampleaddr….workername — your payout address, then an optional worker label after the dot. Not sure? Lite is a safe default for almost any home ASIC, and vardiff will sort out the rest within a day.
If the port doesn't change your odds, why not just use any of them? Because a bad match makes your stats useless — and stats are how you watch a machine that might mine for years before it ever finds anything.
Put a Bitaxe on :4334 Pro and its floor is so high it may submit a share only once an hour or less. To the pool it looks offline, your hashrate estimate jumps around wildly, and you can't tell a dead miner from an unlucky one. Put a big farm on :3335 Nano and it floods the pool with tiny shares until vardiff ramps up — wasteful and noisy until it settles.
The pool can't see your chips; it estimates your hashrate from the shares you send, smoothed over 1m / 5m / 1h / 1d windows. The right port feeds that estimate enough shares to stay steady and honest. That's the whole reason to choose carefully — clarity, not luck.
TLS (Transport Layer Security) is the same encryption your browser uses for https://. Port :3334 is an encrypted version of stratum — TLS-terminated at SoloLuck's edge and forwarded to a backend port. The mining math is identical; TLS only protects the connection, never your odds.
Why it matters: on an untrusted network — a hosting provider, a rental box, shared office Wi-Fi — someone in the middle could read or even rewrite your stratum traffic, including swapping your payout address for theirs. TLS stops that snooping and tampering. On a trusted home LAN the plaintext ports are perfectly fine.
To use it, point your miner at a TLS stratum URL, for example stratum+tcps://stratum.sololuck.io:3334, where your firmware supports it (AxeOS and cgminer vary). The CPU and latency overhead is tiny — negligible for mining.
Paste your address and copy the config from /setup, watch the pool on /status, and check every claim on /verify. Mine to your own address — that is what makes it truly solo.
Not ready to point a miner yet? Run your gear through the odds calculator, or join Telegram for block & record alerts — no rig required.
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