Pearl block time and difficulty: target vs actual

Pearl targets 194-second blocks but has averaged about 120. How per-block difficulty works and why the chain is 53,000 blocks ahead of schedule.

By the Oyster team··6 min read

Pearl (PEARL) has a target block time of 3 minutes 14 seconds, but if you watch a block explorer you will see blocks land faster than that, sometimes much faster. This guide explains the target, how Pearl’s per-block difficulty adjustment works, how far the real chain has drifted from the schedule and what that drift means for miners, holders and anyone waiting for confirmations. Figures are as of November 5, 2026.

The target: 194 seconds per block

Pearl’s consensus rules aim for one block every 194 seconds. That number is not arbitrary: the emission constant K = 650,226 is four years of blocks at exactly 194 seconds each, which is how the supply schedule gets its four-year rhythm. Everything else about the reward (no halvings, a smooth decline every block) is defined by block height, not by date. The 194-second target is the link that turns heights into dates.

How Pearl’s difficulty adjustment works

Bitcoin recalculates difficulty once every 2,016 blocks. Pearl, whose node is derived from btcd, does something different: it adjusts difficulty after every block, using a moving average with a one-week half-life. In plain terms:

  • Blocks too fast: difficulty creeps up a little with each block, making the next one slightly harder to find.
  • Blocks too slow: difficulty eases off a little with each block.
  • One-week half-life: the rule weighs recent history but forgets it gradually. A sudden change in hashrate is absorbed over days, not in one jump. That keeps block times stable when a large miner switches on or off, at the cost of reacting slowly to big, sustained changes.

At block 138,995 (early on November 6, 2026 UTC, which is the evening of November 5 in the Americas) Blockbook reported a network difficulty of 53,529,875, with nodes running pearld 1.5.5. For context on what that difficulty means in hashrate, see Pearl network stats.

Target vs actual block time

Block 1 was mined on April 27, 2026 at 09:00:01 UTC. From there to block 138,995 the chain produced 138,994 blocks in 16,644,692 seconds, about 192.6 days. That works out to roughly 120 seconds per block, about 38% shorter than the target.

PeriodBlocksAverage block time
Launch to Sept 15, 2026 (to block 100,000)99,999About 95 seconds
Sept 15 to Oct 19, 2026 (to block 128,947)28,947About 188 seconds
Oct 19 to Oct 27, 2026 (to block 134,397)5,450About 163 seconds
Oct 27 to Nov 5, 2026 (134,397 to 138,995)4,598About 182 seconds
Launch to Nov 5, 2026 (whole chain)138,994About 120 seconds
Target194 seconds

Every row uses the block timestamps reported by Blockbook. The pattern is clear: almost all of the head start came in the first four and a half months, when blocks arrived about twice as fast as the target. Since mid September blocks have run much closer to 194 seconds, and the most recent stretch (4,598 blocks in 838,520 seconds) is still a little under it.

Why the chain is about 53,000 blocks ahead

At 194 seconds per block, the 192.6 days since launch would have produced only about 85,800 blocks. The real chain was at 138,995, so it is roughly 53,000 blocks ahead of the schedule the emission formula was designed around.

The likely reason is the combination of fast hashrate growth and a difficulty rule that adapts gradually. When miners keep arriving faster than a one-week half-life can follow, difficulty is always a step behind and blocks keep coming early. As growth slows, difficulty catches up and block times drift back toward the target, which matches what the recent 182-second average shows.

Blocks already mined stay mined. Even if every future block arrives exactly on target, the chain stays about 53,000 blocks ahead of the original calendar. Dates in any Pearl emission table that assume 194-second blocks from launch will be early by about that many blocks.

What faster blocks mean for emissions

Pearl’s reward is set per block height, so the total supply at block 138,995 is the same whether that block arrived in 2026 or 2030: about 369.85 million PEARL, or 17.6% of the 2.1 billion maximum. What changes is the calendar. Faster blocks mean more blocks per day, which means more new PEARL per day.

  • At the 194-second target, about 445 blocks per day at roughly 2,192 PEARL each is about 976,000 PEARL per day.
  • At the recent pace of about 182 seconds, about 475 blocks per day is roughly 1.04 million PEARL per day.

We break these numbers down further in how much Pearl is mined per day, and turn them into yearly percentages in Pearl’s inflation rate.

What it means for miners

  • Income per day tracks block speed. Your share of blocks depends on your share of hashrate. When blocks come faster than target, the whole network earns more per day, and so do you. As block times settle near 194 seconds, daily network income settles too.
  • Difficulty rises with competition. Because difficulty moves every block, new hashrate shows up in your earnings within days. Plan with live numbers, not launch-week numbers. Our mining profitability guide covers the inputs.
  • Maturity is counted in blocks. Mined coins need 100 confirmations before they can be spent. At 120-second blocks that was a bit over 3 hours; at the 194-second target it is about 5.4 hours.

What it means for everyone else

For ordinary transfers, faster blocks mean faster confirmations. A first confirmation usually lands within a few minutes either way. See how long Pearl transactions take for confirmation counts that exchanges typically ask for.

For holders, the important point is that the supply curve is fixed by height. Faster blocks pull issuance forward in time but do not change the 2.1 billion cap or the shape of the curve. If you are new to the rules behind all this, start with what is Pearl (PEARL) and proof of useful work, explained.

Frequently asked questions

What is Pearl's block time?

Pearl targets one block every 194 seconds (3 minutes 14 seconds). In practice blocks have come faster: from launch on April 27, 2026 to early November 2026 they averaged about 120 seconds, and from October 27 to November 5, 2026 about 182 seconds.

How often does Pearl's difficulty adjust?

Every block. The node uses a moving average with a one-week half-life, so difficulty reacts smoothly to miners joining or leaving instead of jumping at fixed intervals like Bitcoin's 2,016-block retarget.

Why is the Pearl chain ahead of schedule?

Blocks arrived faster than the 194-second target for most of the chain's life, so by early November 2026 the chain had about 139,000 blocks instead of the roughly 85,800 the target pace would give. A difficulty rule that adapts gradually tends to lag behind fast hashrate growth, which lets blocks come early while it catches up.

Does a faster block time mean more PEARL in total?

No. The reward is fixed per block height, so the total supply at any height is the same. Faster blocks only mean that each height, and the PEARL issued up to it, is reached sooner in calendar time.

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Written by

The Oyster team

We build Oyster, the self-custody wallet for Pearl, and write these guides from how the app and the Pearl network actually behave. Oyster is made by UALIS INC. Spot something out of date? Tell us on X.

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