⚠️ This is not a regular solo or proportional pool. Read Disclaimer carefully before you point your miner here — the payout model is fundamentally different and rewards are not guaranteed.

Read why solo100.org is first of its kind →

By the developer of SoloChance.org

solo100.org:
The most exciting Bitcoin pool to join.

Find the best quality share. Claim your spot in Best 100.
Split the reward equally.

10% Finder Bonus Best 100 Share Equally 2% Pool Fee SHA-256 · Stratum v1

Bitcoin

BTC / USD
—
Network Hashrate
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Sponsor

Pool Status

Live
🌱
Pool is warming up

Stats will appear here once the pool is live. Check back soon.

Hashrate & Workers
Hashrate Workers
Loading chart…

Why solo100.org is awesome

🏆
How Each Block Pays Out
  1. 0.3125 BTC bonus to whoever finds the block
  2. 0.0275 BTC each to the 100 qualifying addresses in Best 100 list that sent the top 100 best shares — 2.75 BTC total, split equally
  3. 0.0625 BTC pool fee (2%)

All outputs in coinbase — fully trustless.

💎
Quality Over Quantity
Only your single best share this round determines your rank. Higher hashrate means a statistically better chance of producing a high-quality share — but you don't need to outwork everyone, just outperform on one share.
🏖️
Mine When You Want
Once you're in Best 100 list, you're free to stop. You'll collect your reward if and when a block is found — no need to keep mining. Just check your rank from time to time. If you've dropped below #100, fire up your miner again to reclaim your spot.

Quick Connect

Stratum testnet.solo100.org:3333

Rentals (Braiins / NiceHash): use port 4444

Username your BTC address.workername

e.g. bc1q…youraddress.bitaxe1 — no registration required

Password x

💡 It is statistically better to give each device its own Bitcoin address — not just a different worker name. Every unique address competes as an independent entry in Best 100, giving each device its own shot at qualifying. See Strategies →

Explaining why solo100.org is first of its kind

Long story short: solo100.org is the world's first Bitcoin mining meta-game — or, if you prefer, the world's first Stratum game.

⛏️  What is a Bitcoin mining pool?
A group of miners who combine their hashing power instead of each one independently competing solo against the entire Bitcoin network for the block subsidy. Solo mining variance is enormous — a small miner could statistically wait years, even centuries, for a lucky block. Pools smooth this out by rewarding miners for submitted shares (partial-difficulty proofs of work) rather than making everyone wait for an outright win.
📊  What is a proportional pool?
The most common pool model. Every miner submits shares during a round. When the pool finds a block, the reward is split among all of that round's participants in proportion to the shares they submitted — more hashrate, bigger slice. It heavily smooths out variance: you get paid a little, often, roughly proportional to the work you actually contributed.
🎯  What is a solo pool?
The opposite extreme. Whoever personally finds a block keeps the entire reward (minus a small pool fee) — nothing until then. High variance, high reward: it's exactly like mining alone, except the pool operator runs the stratum server, block template, and node for you. A modest solo miner may statistically wait months or years between blocks.
🦠  What is a "parasite pool"?
A hybrid: structurally a regular proportional pool, but with one large finder bonus bolted on top — for example, an extra 1 BTC paid directly to whoever happens to find the block, on top of everyone's normal proportional share. It's built to attract lottery-minded miners chasing the bonus, while the pool still runs on ordinary proportional plumbing underneath. It's a proportional pool wearing a solo-mining costume.
🎯  Why solo100.org is actually needed
Bitaxes and other low-hashrate devices — and even small farms — are barely useful in a proportional pool. Spread across the entire network's hashrate, they earn a slow trickle of a few satoshis at a time, round after round, forever. Pure solo mining is the opposite problem: an absolute lottery with vanishingly small odds — see the exact numbers below.

solo100.org sits in between, as the ultimate game of chance. You don't need extreme, once-in-a-lifetime luck to win a meaningful amount of Bitcoin — just enough luck to land one good share inside Best 100. That's a realistic, attainable target for a small miner in a way that "find an entire block alone" never is, while still paying out a real, life-changing-scale amount instead of dust.
🎲  Odds vs. reward — 1.20 TH/s Bitaxe Gamma, per day
Same hardware, four pool models. Left side: chance of landing any payout today. Right side: size of that payout if it lands. Both scales are logarithmic — each step is 10× the last, because the numbers here span from a handful of satoshis to an entire block.
solo100.org other pool models
← Chance of a payout, per day Payout, if it lands →
Proportional pool
~100%
Steady but not meaningful
a small slice of every block found
~68 sats
Solo pool
1 in 4,566,405
Entire Block
great reward but once in a lifetime chance
3.125 BTC
Parasite pool
~100%
Steady but not meaningful
a small slice of every block found
~47 sats
1 in 4,566,405
Finder bonus
great reward but once in a lifetime chance
1 BTC
solo100.org
≈1 in 45,664
Best 100 Slot
realistic chance, meaningful reward
0.0275 BTC
1 in 4,566,405
Finder bonus
great reward but once in a lifetime chance
0.3125 BTC

Chance per day for a 1.20 TH/s Bitaxe Gamma sourced live from api.solochance.org (network hashrate ≈789 EH/s at time of writing). solo100.org's Best 100 odds are modeled as 100× the solo block-finding chance — one shot per Best 100 slot instead of one shot at the whole block. Actual odds move with network hashrate and pool competition — treat these as illustrative, not guaranteed.

View as table
Pool modelOutcomeChance / dayPayout
ProportionalSteady but not meaningful~100%~68 sats
SoloEntire Block1 in 4,566,4053.125 BTC
ParasiteSteady but not meaningful~100%~47 sats
ParasiteFinder bonus1 in 4,566,4051 BTC
solo100.orgBest 100 Slot≈1 in 45,6640.0275 BTC
solo100.orgFinder bonus1 in 4,566,4050.3125 BTC
🎮  Why solo100.org is genuinely an invention
solo100.org is none of proportional, solo, or parasite — it ranks miners purely by share quality, not accumulated work, not a single winner-take-all roll, and not a proportional split with a bonus bolted on top.

The moment your address submits a share good enough to sit inside the current Best 100, you hold a live claim on an equal 1/100th slice of 88% of whatever block gets found next — real Bitcoin, under real, unmodified Bitcoin consensus rules. That slice isn't a fixed number: the block reward itself is the 3.125 BTC subsidy plus whatever transaction fees the finder's block happens to include, so a heavier, fee-rich block means a bigger payout for everyone in Best 100. Nobody promises it to you and nobody custodies it. The reward is written directly into the coinbase transaction of the block itself, address by address, the instant it's mined — the same protocol-level mechanism that has paid every block finder in Bitcoin's history, just now split 100 ways instead of one. solo100.org, the operator, never touches a single satoshi belonging to a miner; Bitcoin's own protocol is the payout mechanism.

That's the invention: turning the ordinary mechanics of Stratum pool mining — shares, difficulty, hashrate — into ranked, competitive slots on a real, live leaderboard, where the prize is an unmodified Bitcoin block reward paid trustlessly by the chain itself. It's mining, gamified: the "game" still does real security work for the Bitcoin network, and the "win condition" still pays out in real BTC, coinbase-native, no IOUs, no custodian. As far as we know, no pool has ever combined a ranked, resettable, share-quality leaderboard with direct coinbase-output payouts to 100 independent winners per block — which makes solo100.org the first Bitcoin mining meta-game.

Connection Details

Stratum testnet.solo100.org:3333

Rentals (Braiins / NiceHash): use port 4444 —

Username YOUR_BTC_ADDRESS.worker1

Use your Bitcoin address as username. Append a worker name after a dot: bc1q…address.bitaxe1

Password x

💡 It is statistically better to give each device its own Bitcoin address — not just a different worker name. Every unique address competes as an independent entry in Best 100, giving each device its own shot at qualifying. See Strategies →

Example Config

Pool Settings
Pool Configuration
Favourite Pools
Add new pool

minimum pool difficulty: >= 500000

cpuminer-opt \
  -a sha256d \
  -o stratum+tcp://testnet.solo100.org:3333 \
  -u YOUR_BTC_ADDRESS.worker1 \
  -p x
cgminer \
  --url stratum+tcp://testnet.solo100.org:3333 \
  --user YOUR_BTC_ADDRESS.worker1 \
  --pass x

Connection and Config Notes

⚠️  Large Coinbase Output with 102 payments — known problems:
solo100.org pays out 102 recipients per block — 100 Best 100 addresses, the block finder, and the pool fee. This makes our coinbase transaction unusually large. Some mining software and firmware cannot handle it and will fail to verify the pool or connect altogether.
NiceHash pool verificator may fail
The verificator will likely reject solo100.org. You can ignore it and save the pool anyway — but we haven't tested this ourselves yet. Let us know if it works for you in our Telegram channel.
NerdQaxe models may have connection issues
Known firmware bug. Fix expected in version 1.0.37 — update once available.
NerdNOS models do not work with solo100.org
Cannot connect or submit shares. Exact cause unconfirmed — most likely the same coinbase output issue. No fix available yet.

My Stats

Enter your Bitcoin address — it's also your mining username.

Current Best 100 Shares

Live

Only the best 200 addresses are shown here. If your address isn't listed, use to look up your best share.

# Miner Address Best Share Est. Payout Status
Loading…

Payout estimates assume current block value of 3.125 BTC. Actual payout depends on when (and if) the block is found.

Blocks Found

🧱
Loading blocks…

Fetching the list of found blocks.

Strategy Tips

🔄  Rotate addresses once you've secured a strong share
Each address holds exactly one leaderboard slot. Once you're well inside Best 100, extra hashing on that address does little. Switch to a fresh address to compete for a second slot — or continue regular solo mining and rejoin next round.
⚡  Short rental bursts beat sustained campaigns
Only Best 100 shares matter — not total work. A targeted burst of rented hash at the start of a fresh round is far more efficient than renting for the whole round. Use a fresh Bitcoin address for each rental — each address gets its own leaderboard slot. Since all 100 qualifying miners earn the same 0.0275 BTC regardless of rank, improving an already-secured slot doesn't increase your payout. Point that hash at a new address instead.
🏖️  Mine a little, park your spot, mine elsewhere
You don't need to mine here full time. All that matters is that your address is inside Best 100 when a block is found. Mine enough to secure a spot, then point your hardware at another pool in the meantime — no pressure. Just check back occasionally to make sure you're still inside the cutoff, since new miners keep joining and the competition shifts over time.
🤏  Smaller miners punch above their weight here
A fleet of smaller machines under different addresses can hold multiple Best 100 slots simultaneously. More slots = more expected payout exposure per block found.
🚀  Join early in a fresh round
Right after a block is found the leaderboard resets and every slot is open. Even a modest share can land a top position before the field fills up. If the pool gets lucky and finds a block at low effort, early joiners benefit the most — check your position regularly to make sure you're still inside Best 100 as the round progresses.
👁️  Watch the cutoff line
The Best 100 leaderboard shows where the cutoff sits in real time. If you're comfortably inside the top 50 on one address, start a second. If you're just outside, a short burst may push you in.
⏰  Your payout will arrive — but patience is required
When solo100.org finds a block, qualifying miners in Best 100 will receive their Bitcoin directly to the address they mined with. However, newly mined coins (coinbase outputs) are locked by the Bitcoin protocol for 100 block confirmations — roughly 16–17 hours — before they become spendable. This is a Bitcoin consensus rule that applies to all mining pools worldwide, not something specific to solo100.org. If your wallet shows the coins but won't let you spend them yet, that's why. Please don't reach out on Telegram or X about this — it will resolve on its own.

Disclaimer

⚠️ Read the following text very carefully and proceed only if you accept all of the conditions.

solo100.org is in beta and extremely early in development. It is immature in several areas of pool software and management. Think of it as a hobby, an experiment, and entertainment. Join only if you are comfortable knowing it can go down or go wrong at any minute, in any way, permanently or indefinitely. Remember this a thousand times: this website, its software, and the individual behind it do not promise anything — at any level, in any context.

You will not get paid in the following situations — any of them are possible, and all are inherent risks in running a new Bitcoin mining pool.

🛠️  Software bugs and misconfigurations
It is entirely possible that there are bugs in the pool software that could:
  • prevent block finding altogether,
  • fail to deliver a found block to the node,
  • fail to propagate a received block correctly.
To reduce this risk, the pool software has been tested extensively: it has already found and correctly delivered several testnet blocks — see the full list on the test.solo100.org Blocks Found page. Testing continues at test.solo100.org before changes reach mainnet.

This project is still in beta and has not been proven under real Bitcoin mainnet conditions. Please use the battle-tested solo pools listed at the end of this page if you will be extremely upset about missing a found block due to pool software, config, or other unforeseen issues.
⛓️  Orphaned blocks
Orphaned blocks are a natural part of the Bitcoin network — any block can be orphaned before 2–3 confirmations. We could find a block and later lose it due to a chain reorganisation. This is not specific to solo100.org; it can happen to any mining pool.
🕰️  Stale shares
A stale share arrives after the round has already closed and cannot be counted. In the most extreme case, if a stale share carried enough difficulty to find a block, it will still be rejected — no block submitted, nobody gets paid. A winning share that arrives too late is simply discarded.
📝  Mistyped or forgotten Bitcoin addresses
Because our payment scheme is so different, you could potentially win a significant amount of Bitcoin years after the best share that placed you in the Best 100 list was sent. It is entirely your responsibility to control everything about your address. With coinbase output payments, we never touch your reward throughout the entire process.
📉  Being pushed out of Best 100
Especially if you are in position #98, #99, or #100, an address with a higher best share can drop you from Best 100 at any moment — including the very last seconds before a block is found. In that case, you will not receive a reward, even if your address was visible in the list the entire time.
⏱️  Joining Best 100 list too late
If your address submitted a best share just seconds before a block was found, it will not get paid — because it was not yet included in the block template distributed to the block finder's mining device. If your address has been in the list for more than a minute when a block is found, this issue will not affect you in any way.
🎭  Malicious pool operator
In any pool where multiple miners share a block reward, there is a trust problem that cannot be solved on-chain: you cannot verify that the other participants are real.

On solo100.org, the operator could silently inject fake entries into Best 100 — addresses they control, with fabricated share values that never existed. There is no cryptographic proof that any submitted share is genuine. The leaderboard you see could be entirely real, partially fake, or completely fabricated. You have no way to tell.

solo100.org has no fake entries, no fabricated shares, and no manipulation of the leaderboard of any kind. Every address you see competed genuinely. But the only evidence of this is the operator's word — there is no way to audit it at all.
⚖️  Legal risks
Bitcoin history is full of products, services, and projects that were entirely lawful when they launched — and were later deemed unlawful retroactively.

Any court order or order from any governmental body can cause termination of this service indefinitely with no prior notice. In that case, your shares in Best 100 will be void with no recourse.

Your last warning: This is an exotic and experimental project run by a very new individual in pool management — who is actually running his first pool software modification and his first pool ever.

To take no risk, use the following pools:

FAQ

What is solo100.org?

solo100.org is a Bitcoin mining pool with a unique reward model, a SoloChance.org project. Instead of splitting the reward across all miners by total work, solo100.org rewards only the 100 miners who submitted the highest-quality shares in the current round — each earning an equal 0.0275 BTC (0.88% of the block reward). The block finder also earns a 10% bonus on top.

How is share quality measured?

Share quality is measured by difficulty — how close the share's hash is to satisfying the full Bitcoin network difficulty. Each miner is ranked by their single best share this round. Higher hashrate gives a statistically better chance of producing a high-quality share.

What if I'm not in Best 100?

Miners ranked #101 and below receive no payout for that round. The leaderboard resets every block, so every round is a fresh opportunity. Think of it like solo mining — but 100 people share the win instead of one.

Can one miner hold multiple slots?

No. Each Bitcoin address holds at most one leaderboard position, determined by its single best share. Running multiple distinct Bitcoin addresses gives each its own independent position — which is a valid strategy for maximising your expected payout.

When and how do I get paid?

Payouts are coinbase outputs — paid directly in the block your pool finds, to the Bitcoin address you mined with. No account or registration required. However, coinbase outputs are locked by the Bitcoin protocol for 100 block confirmations (roughly 16–17 hours) before they become spendable. This is a consensus rule that applies to every mining pool in existence.

What hardware do I need?

Any SHA-256 ASIC works — Antminer S-series, Whatsminer M-series, AvalonMiner, Bitaxe, etc. The pool uses standard Stratum v1, compatible with virtually all modern Bitcoin mining hardware and software.

What is the pool fee?

2% of each block reward — exactly 0.0625 BTC per block. This covers server infrastructure, development, and maintenance. No hidden fees or withdrawal charges.

Is this safe? Do I need to trust the pool?

You never deposit funds. You point your miner at the stratum server; if a block is found, payouts go to your Bitcoin address automatically. The only risk is opportunity cost — if no block is found this round, those shares yield nothing (same as solo mining). You can stop at any time.

I can see my payout in my wallet but can't spend it — why?

This is completely normal. Coinbase outputs — the direct payout from a mined block — are locked by the Bitcoin protocol for 100 block confirmations before they become spendable. At roughly 10 minutes per block, that's about 16–17 hours after the block is found. Your coins are safe; they just need to mature. This rule applies to every Bitcoin mining pool in existence and is enforced at the protocol level. Please don't reach out on Telegram or X about this — the wait is automatic and there is nothing anyone can do to speed it up.

Where is solo100.org located?

The pool server runs in Frankfurt, Germany. Invoicing and domain purchases are handled through Estonia, thanks to the Estonian e-Residency programme, which allows individuals to access EU digital services without being a resident. The operator lives somewhere else.

Why are all Bitcoin addresses public? Why not mask them until a valid share is found?

To be fully trustless, all payouts must be coinbase outputs — written directly into the block by the miner who finds it, with no pool operator touching the coins at any point. By the nature of that design, Bitcoin addresses must be declared upfront and are therefore public, just as they would be in any coinbase transaction on the Bitcoin blockchain.