ViaBTC’s mining statistics can show changes in pool efficiency, but only when several measures are read together. Its BTC statistics page currently reports 98.79 EH/s of pool hashrate, 98.44% 3-day luck, 91.05% 7-day luck, 92.02% 30-day luck, 99.73% total luck, 52,780 total blocks, and 19 orphaned blocks, with an orphan rate of 0.03%. A single luck figure cannot prove an operational change because Bitcoin block discovery is probabilistic. The stronger test is whether hashrate quality, accepted shares, orphan rates, normalized output, and revenue estimates move together over multiple periods.
ViaBTC’s published figures provide enough information to build a practical efficiency view without treating every short-term change as an infrastructure problem. The current 98.79 EH/s pool hashrate can be compared with the Bitcoin network’s 938.03 EH/s shown on the same page, placing the pool at roughly 10.5% of network hashrate at the time of the snapshot.
That share matters because expected block production is tied to the ratio between pool hashrate and network hashrate. If a pool controls about 10.5% of total network work, its long-run share of blocks should tend toward a similar range, although short periods can differ sharply.
A 10.5% hashrate share does not require exactly 10.5% of blocks in every week; it is a long-run statistical expectation.
The published luck numbers show why the observation period matters. ViaBTC reports 92.02% luck over 30 days but 99.73% over total history. A 92.02% reading says that recent block discovery was below statistical expectation, while the 99.73% lifetime figure is much closer to 100%.
The difference between those two figures is not enough to label the pool less efficient. A shorter sample can contain unusually slow or unusually fast blocks. The same statistics page lists a Bitcoin block found after 5 hours, 6 minutes, and 39 seconds with 30.46% luck, while another block was found in only 4 minutes and 45 seconds with 2,554.37% luck.
Those two observations come from the same pool, yet they point in opposite directions if they are read without context. The first block took much longer than its statistical expectation; the second arrived far faster. Both are consistent with random block discovery.
For efficiency research, a rolling sample is more useful than a single block. A 24-hour sample can reveal a service interruption, while 7-day and 30-day samples are better suited to separating temporary luck from persistent changes. Using 90 days can further reduce the effect of unusually short block intervals.
The orphan-rate data provides another measurement. ViaBTC currently lists 19 orphan blocks out of 52,780 total blocks, or 0.03%. That number is small enough that a change should be judged against the historical baseline rather than against 0%.
For example, a move from 0.03% to 0.04% would represent a relative increase of about 33%, but only a few additional orphan events could produce that percentage change when the sample is viewed over a short window. A move toward 0.10% sustained over thousands of blocks would require much more attention.
Orphan data becomes more useful when the sample contains hundreds or thousands of blocks rather than 10 or 20.
Hashrate quality can be examined separately from block luck. A miner may report 100 TH/s locally while the pool records a lower effective contribution because of connection interruptions, stale shares, rejected shares, or unstable hardware. ViaBTC notes that power, network conditions, and miner status can all affect hashrate output.
This creates a useful comparison:
| Measurement | Example | What it can indicate |
|---|---|---|
| Local miner hashrate | 100 TH/s | Hardware output |
| Pool-side valid hashrate | 97 TH/s | Work reaching the pool |
| Difference | 3% | Potential delivery loss |
| Rejected shares | 0.3% | Normal operating range for some setups |
| Rejected shares later | 3.0% | Requires investigation |
A 3% gap by itself does not prove a ViaBTC infrastructure issue because the cause may sit between the miner and the pool. The result becomes more informative when many unrelated miners show the same change at the same time.
ViaBTC also recommends using multiple connection ports so a miner can switch when one connection fails. Its BTC mining guide lists ports 3333 and 443 for the BTC Stratum endpoint. That setup reduces the chance that one unavailable route stops a worker for an extended period.
Revenue data needs another layer of adjustment. ViaBTC currently lists PPS+ and PPLNS as its supported payment methods, with a 4% fee on the PPS block-reward component and a 2% fee on the PPLNS-related portion under PPS+, while PPLNS uses a 2% fee.
Under PPS+, the block-reward component is paid using a share-based calculation tied to current difficulty, while transaction fees are allocated using PPLNS. Under PPLNS, payouts depend on the miner’s hashrate share across the last 5 difficulty rounds when a block reaches 6 confirmations.
That distinction changes how miners should interpret a drop in daily BTC income. A PPLNS account can experience larger short-term changes because actual pool block production matters more directly. ViaBTC states that PPS+ is designed for more stable income, while PPLNS exposes miners more directly to low-luck periods.
Difficulty must also be included in every serious comparison. The ViaBTC statistics page currently shows Bitcoin difficulty at about 125.81 trillion and network hashrate at 938.03 EH/s. If difficulty rises while a miner keeps the same 200 TH/s, expected BTC output per unit of hashrate can fall even when the pool is operating normally.
A simple daily-income comparison can therefore produce a false signal. Comparing September 2026 output with an earlier month without normalizing difficulty, BTC price, transaction fees, and payout method mixes several unrelated changes.
The ViaBTC Mining Calculator is useful for checking that relationship because its inputs include BTC price, difficulty, PPS fee rate, and valid hashrate, while the result provides estimated daily earnings. That makes it better suited to scenario comparisons than using raw BTC income alone.
Transaction fees add another source of variation. ViaBTC states that PPS+ combines a PPS-based block-reward component with a flexible transaction-fee component distributed through PPLNS. If average fees per block rise by 20% while hashrate and difficulty remain similar, miner revenue can rise without any change in pool operating quality.
The same issue applies to merged-mining rewards where supported. A change in total credited assets can alter the dollar value of mining output without changing the amount of SHA-256 work contributed. Revenue should therefore be split into block subsidy, transaction fees, pool fees, and any additional credited rewards before it is used to assess efficiency.
A useful monitoring table can use five indicators across fixed time windows:
| Indicator | 24 hours | 7 days | 30 days | Interpretation |
|---|---|---|---|---|
| Pool hashrate | 98.79 EH/s | Rolling average | Rolling average | Capacity supplied |
| Luck | 98.44% | 91.05% | 92.02% | Block discovery |
| Orphan rate | Track daily | Compare baseline | Compare baseline | Accepted-chain loss |
| Effective/nominal hashrate | Compare | Compare | Compare | Share delivery |
| BTC per TH/s | Normalize | Normalize | Normalize | Economic output |
The current ViaBTC snapshot already shows why these columns need to be read together: 3-day luck is 98.44%, 7-day luck is 91.05%, and 30-day luck is 92.02%, while total luck remains 99.73%.
A genuine efficiency change would usually be easier to support when independent measures move in the same direction. For example, if effective hashrate falls by 4%, rejected shares rise from 0.5% to 2.5%, orphan rates rise above a long-term 0.03% baseline, and the pattern persists for 30 days, the case is much stronger than a single 7-day luck reading below 100%.
The reverse pattern also matters. If pool hashrate stays near 98.79 EH/s, rejection rates remain stable, orphan rates remain near 0.03%, and only luck falls to 92.02%, random block variance is a much more reasonable explanation.
The historical sample should also be large enough to avoid percentage distortion. Ten blocks cannot tell the same story as 1,000 blocks. If 1 of 10 blocks is orphaned, the rate is 10%; if 3 of 10,000 are orphaned, the rate is 0.03%. The percentages look very different because the sample sizes are fundamentally different.
For pool-quality comparisons, use the same time window, the same measurement definition, and a sufficiently large block or share sample.
ViaBTC’s public data can therefore reveal changes in several parts of pool operation, but it does not produce a single standalone efficiency score. The most informative pattern comes from comparing hashrate, valid shares, rejected shares, luck, orphan rate, difficulty-adjusted output, and payout results over 7-, 30-, and 90-day periods.
A 92.02% 30-day luck reading is useful information. A 0.03% orphan rate is useful information. A 98.79 EH/s pool hashrate is useful information. None of them, by itself, can establish a technical decline.
When the same change appears across several independent measurements and remains visible through multiple difficulty periods, the statistics provide a much stronger basis for saying that pool efficiency has changed. When only block luck moves, the safer reading remains statistical variance rather than a confirmed infrastructure problem.