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SoloBlocks Block #499,241
CKPool Solo
Thursday, December 14, 2017 · 11:14 UTC · Dec 14, 2017
BLOCK #499,241
Total Block Reward
16.3922 BTC
≈ $1,107,788 USD
Block Height
499,241
in the Bitcoin chain
Found By
CKPool Solo
Solo mining pool
Difficulty
1.6T
network difficulty
Miner Hashrate
3.1 PH/s (est. from 4 blocks)
Large mining farm
Miner Luck
1 in 333,351
per-block odds
Winning Nonce
1,526,226,655
35.54% through search space
Transactions
2,506
1023.1 KB block
Fees Collected
3.8922 BTC
23.74% of reward
Block Interval
14.5 min
68.8% luck (🐢 slow)
🎓 Explain Like I'm 10

Bitcoin mining is a giant lottery. Every ~10 minutes, one miner wins 16.3922 Bitcoin — worth $1,107,788 today.


On Dec 14, 2017, this miner using a Large mining farm found block #499,241. They were mining alone — no big pool, just their own machines competing directly against the entire Bitcoin network (1020.75 EH/s total).


Winning solo means keeping 100% of the reward — no pool fees, no sharing. High risk, high reward.

🎲 The Odds — Show Your Work
Miner's share of total Bitcoin hashrate 0.000300%
Miner: 3.1 PH/s vs Network: 1020.75 EH/s
Miner hashrate (Estimated from block frequency (4 blocks found))
3.1 PH/s
Bitcoin network hashrate
1020.75 EH/s
Chance of winning each block
1 in 333,351
Expected wait time at this hashrate
6.3 years
Expected blocks to find 1 solo block
333,351 blocks
Probability per block = miner_hashrate / network_hashrate
  = 3.1 PH/s / 1020.75 EH/s
  = 1 in 333,351

Expected wait = blocks_to_win × 10 minutes
  = 333,351 × 10 min = 6.3 years
⛏️ Miner Profile
🏗️
Pool
CKPool Solo
Hashrate (24h)
3.1 PH/s (est. from 4 blocks)
Estimated from block frequency (4 blocks found)
Active workers
0
Solo blocks found (tracked)
4 blocks
🏗️
Large mining farm
Thousands of ASICs, industrial power
🎯 The Winning Number — Nonce Visualizer
To mine a block, the miner cycles through numbers from 0 to 4,294,967,295 at billions per second, checking if each produces a valid hash. Number 1,526,226,655 was the winner.
01,526,226,655 ← winner4,294,967,295
35.54%
1,526,226,655
Winning Nonce
35.54%
Through range
2,768,740,640
Numbers after
💡 The miner also tried different extra nonce values — restarting from 0 each time the full 4.29B range was exhausted. Modern ASICs can cycle through the entire nonce space in ~0ms.
💸 Fee Breakdown — What the Miner Captured
The block reward has two parts: a fixed subsidy set by Bitcoin protocol, plus transaction fees paid by users who wanted their transactions included.
Subsidy — 12.5000 BTC (76.26%)
Fixed reward, halves every 4 years
Fees — 3.892247 BTC (23.74%)
From 2,506 transactions in this block
12.500 BTC
Subsidy
3.8922 BTC
Tx Fees
155,317 sat
Avg fee/tx
⚡ Solo miners keep 100% of fees — no pool takes a cut. In pool mining, the fee revenue is also split among all pool members.
🏆 Miner Block History — 4 Blocks Found
56.8411
Total BTC earned
$3,841,321
Total USD value
55 days
Avg between finds
Nov 7, 2017 · 17:09 UTC · CKPool Solo
15.2788 BTC ≈ $1,032,540
#499,241THIS BLOCK
Dec 14, 2017 · 11:14 UTC · CKPool Solo
16.3922 BTC ≈ $1,107,788
⏱ 37 days since previous find
Mar 17, 2018 · 18:22 UTC · CKPool Solo
12.6638 BTC ≈ $855,821
⏱ 93 days since previous find
Apr 21, 2018 · 21:00 UTC · CKPool Solo
12.5062 BTC ≈ $845,172
⏱ 35 days since previous find
📊 At 3.1 PH/s hashrate, statistically expected to find a block every 6 years. Actual average: 55 days. 🍀 Running hot!
🔍 How We Know This
⛓️
Block is on the Bitcoin blockchain
The block hash starts with many zeros — proof of work that cannot be faked. It's in Bitcoin's immutable history forever.
🏷️
Pool identified from coinbase tag
The coinbase transaction contains a text signature: )]2Z)A_ZD"Zackpool/solo.ckpool.org/
📡
Hashrate from Estimated from block frequency (4 blocks found)
We query the pool's public API using the miner's wallet address to get their actual submitted hashrate.
❓ What is Solo Mining?

In pool mining, thousands of miners work together and split the reward every time they find a block.


In solo mining, you work alone. You keep 100% of the reward — but you might go years without finding anything.


The Bitcoin network produces ~52,560 blocks per year. Each block currently pays 3.125 BTC.


Every solo block is proof that small miners can still win. 🎉

⏱ Block Timing & Luck
68.8%
Block Luck
😤 Unlucky
Time since prev block
14.5 min
Expected (10 min avg)
600 sec
Luck score
68.8% ↓
💡 Slow block — the network took longer than average. This miner kept hashing through a tough stretch. Luck > 100% means a faster-than-expected find.
🎖 Block Certificate
⚡ Solo Block Certificate
BLOCK #499,241
December 14, 2017 · 11:14 UTC
Reward16.3922 BTC
Value$1,107,788
PoolCKPool Solo
Winning Nonce1,526,226,655
Nonce Position35.54% of range
Transactions2,506
Fees Captured3.8922 BTC
SOLOBLOCKS.IO · Bitcoin Solo Mining Tracker
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