{"id":60851,"date":"2026-06-21T22:37:37","date_gmt":"2026-06-21T14:37:37","guid":{"rendered":"https:\/\/nightfame.com\/style\/?p=60851"},"modified":"2026-06-21T23:05:05","modified_gmt":"2026-06-21T15:05:05","slug":"chapter-1-the-mempool-the-front-running-fencer","status":"publish","type":"post","link":"https:\/\/nightfame.com\/style\/chapter-1-the-mempool-the-front-running-fencer\/","title":{"rendered":"Chapter 1: The Mempool – The Front-Running Fencer"},"content":{"rendered":"
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<\/p>\n\n\n\n

Jesse\u2019s bedroom smelled like old pizza and the particular kind of desperation that only comes from watching a countdown timer for three straight hours.<\/p>\n\n\n\n

He sat cross-legged on his gaming chair, knees pulled up to his chest, eyes locked on the screen. The countdown floated in the center of his display: 00:03:42<\/strong>. Three minutes and forty-two seconds until the Emberheart sale went live.<\/p>\n\n\n\n

His phone buzzed. He ignored it.<\/p>\n\n\n\n

His mom called from downstairs, something about dinner. He yelled back, \u201cIn a minute,\u201d without actually hearing what she\u2019d said.<\/p>\n\n\n\n

Nothing else mattered right now.<\/p>\n\n\n\n

On his wall hung a small collection of digital artifact display frames\u2014empty glass-like rectangles that showed rotating images of the items he\u2019d collected over the past two years. A dragon-scale cloak from the Winter Forge event. A compass that pointed to hidden treasure maps. A quiver of arrows that never ran out.<\/p>\n\n\n\n

But the center frame, the biggest one, had been empty for eight months.<\/p>\n\n\n\n

That frame was waiting for Emberheart.<\/p>\n\n\n\n

Jesse had first seen the sword six months ago, during a sneak preview of the Legacy of Ember<\/em> collection. It was beautiful: a long blade that seemed to glow from within, orange and red light pulsing like molten metal, a hilt wrapped in dark leather with a single ruby at the pommel. The creator had designed only one hundred copies. Each would sell for exactly fifty credits.<\/p>\n\n\n\n

Fifty credits didn\u2019t sound like much. But Jesse had been saving since the announcement. He worked part-time at GameCrater (a local store that sold old board games and newer digital collectibles), earning twelve credits an hour. After taxes, after putting some aside for actual food, he\u2019d managed to save sixty-three credits.<\/p>\n\n\n\n

Enough for Emberheart. Enough for the sword that would finally fill that empty frame.<\/p>\n\n\n\n

The problem was that everyone else wanted it too.<\/p>\n\n\n\n

00:02:15<\/strong><\/p>\n\n\n\n

Jesse cracked his knuckles. He\u2019d practiced this submission at least forty times over the past week. Open wallet app. Select payment method. Input recipient address (he\u2019d memorized it). Confirm amount. Submit.<\/p>\n\n\n\n

Total time from sale start to submission: approximately 1.8 seconds.<\/p>\n\n\n\n

He\u2019d timed it.<\/p>\n\n\n\n

His friend Marisol had told him he was being crazy. \u201cIt\u2019s just a sword, Jess. A digital sword. You can\u2019t even hold it.\u201d<\/p>\n\n\n\n

\u201cYou don\u2019t understand,\u201d he\u2019d said. \u201cIt\u2019s not about holding it. It\u2019s about having it.\u201d<\/p>\n\n\n\n

Marisol had rolled her eyes. But Marisol didn\u2019t collect. Marisol didn\u2019t know what it felt like to open your display frames in the morning and see all the things you\u2019d earned, all the proof that you\u2019d been there, that you\u2019d won.<\/p>\n\n\n\n

00:01:00<\/strong><\/p>\n\n\n\n

Jesse\u2019s hands hovered over the keyboard. His wallet app was open on the left side of his screen, the transaction pre-filled and ready. All he needed was the signal.<\/p>\n\n\n\n

The creator\u2019s website had a live feed. A chat room exploded with messages from other buyers.<\/p>\n\n\n\n

Good luck everyone<\/em><\/p>\n\n\n\n

I\u2019ve been waiting for this for months<\/em><\/p>\n\n\n\n

Please let me get just one<\/em><\/p>\n\n\n\n

My body is ready<\/em><\/p>\n\n\n\n

Jesse didn\u2019t type. He didn\u2019t have anything to say. He just stared at the countdown.<\/p>\n\n\n\n

00:00:10<\/strong><\/p>\n\n\n\n

Ten seconds.<\/p>\n\n\n\n

He put his fingers on the keys.<\/p>\n\n\n\n

00:00:05<\/strong><\/p>\n\n\n\n

Five.<\/p>\n\n\n\n

00:00:04<\/strong><\/p>\n\n\n\n

Four.<\/p>\n\n\n\n

00:00:03<\/strong><\/p>\n\n\n\n

Three.<\/p>\n\n\n\n

00:00:02<\/strong><\/p>\n\n\n\n

Two.<\/p>\n\n\n\n

00:00:01<\/strong><\/p>\n\n\n\n

One.<\/p>\n\n\n\n

00:00:00<\/strong><\/p>\n\n\n\n

The sale button turned from gray to blazing orange.<\/p>\n\n\n\n

Jesse clicked.<\/p>\n\n\n\n

His wallet app flashed: TRANSACTION SUBMITTED<\/strong>.<\/p>\n\n\n\n

He let out a breath he didn\u2019t know he\u2019d been holding.<\/p>\n\n\n\n

\n\n\n\n

The pending animation spun on his screen. A little wheel, turning and turning, like a loading icon that had forgotten how to finish.<\/p>\n\n\n\n

\u201cCome on,\u201d Jesse whispered. \u201cCome on, come on, come on.\u201d<\/p>\n\n\n\n

He knew how this worked. He\u2019d bought dozens of artifacts before. You submit a transaction, it goes into the system, and anywhere from thirty seconds to two minutes later, it confirms. The item appears in your inventory. The money leaves your account. Everyone goes home happy.<\/p>\n\n\n\n

Except sometimes it took longer. Sometimes the network got busy. Sometimes you had to wait.<\/p>\n\n\n\n

Jesse glanced at the chat room.<\/p>\n\n\n\n

submitted!<\/em><\/p>\n\n\n\n

same<\/em><\/p>\n\n\n\n

anyone got confirmation yet?<\/em><\/p>\n\n\n\n

not yet<\/em><\/p>\n\n\n\n

ugh hurry up<\/em><\/p>\n\n\n\n

He checked his wallet app again. Still pending. Still spinning.<\/p>\n\n\n\n

Thirty seconds passed. Then a minute.<\/p>\n\n\n\n

A weird feeling started to creep into Jesse\u2019s chest. Not quite panic. More like the sensation of missing a step on a staircase\u2014that lurch where your body expects solid ground and finds nothing.<\/p>\n\n\n\n

He refreshed the sale page.<\/p>\n\n\n\n

Emberheart – Second Edition<\/strong>
Copies remaining: 100<\/strong><\/p>\n\n\n\n

Still one hundred. That meant no one had confirmed yet. The sale had just opened. The system was processing.<\/p>\n\n\n\n

He told himself to relax.<\/p>\n\n\n\n

Two minutes passed.<\/p>\n\n\n\n

Three.<\/p>\n\n\n\n

Then the chat room exploded.<\/p>\n\n\n\n

GOT IT<\/em><\/p>\n\n\n\n

ME TOO<\/em><\/p>\n\n\n\n

Finally!<\/em><\/p>\n\n\n\n

Jesse refreshed the sale page.<\/p>\n\n\n\n

Copies remaining: 84<\/strong><\/p>\n\n\n\n

He refreshed again.<\/p>\n\n\n\n

Copies remaining: 52<\/strong><\/p>\n\n\n\n

Again.<\/p>\n\n\n\n

Copies remaining: 31<\/strong><\/p>\n\n\n\n

Again.<\/p>\n\n\n\n

Copies remaining: 9<\/strong><\/p>\n\n\n\n

Again.<\/p>\n\n\n\n

Copies remaining: 0<\/strong><\/p>\n\n\n\n

His hands were shaking now. He looked at his wallet app. Still pending. Still spinning. That little wheel, mocking him.<\/p>\n\n\n\n

\u201cNo,\u201d he said. \u201cNo, no, no.\u201d<\/p>\n\n\n\n

He refreshed his inventory page.<\/p>\n\n\n\n

Empty. No Emberheart.<\/p>\n\n\n\n

He refreshed his transaction history.<\/p>\n\n\n\n

Transaction ID: 0x8f3a…7b2c<\/strong>
Status: Pending<\/strong>
Amount: 50 credits<\/strong>
Recipient: Emberheart Sale Contract<\/strong><\/p>\n\n\n\n

Pending. Still pending.<\/p>\n\n\n\n

But the sale was over. All one hundred swords were gone.<\/p>\n\n\n\n

How could the sale be over if his transaction was still pending? He\u2019d submitted within the first second. He knew he had. He\u2019d practiced. He\u2019d been ready.<\/p>\n\n\n\n

Jesse slammed his palm on the desk. The vibration knocked over an empty soda can, which rolled across the keyboard and clattered to the floor.<\/p>\n\n\n\n

He didn\u2019t pick it up.<\/p>\n\n\n\n

\n\n\n\n

Twenty minutes later, the transaction finally confirmed.<\/p>\n\n\n\n

Jesse watched it happen with the hollow feeling of someone watching a replay of a game they\u2019d already lost.<\/p>\n\n\n\n

TRANSACTION CONFIRMED<\/strong>
Purchase of Emberheart: 0 units acquired<\/strong><\/p>\n\n\n\n

Zero.<\/p>\n\n\n\n

He clicked through to the transaction details. The block explorer showed him the full record\u2014a long string of numbers and letters, addresses he didn\u2019t recognize, timestamps he couldn\u2019t quite interpret.<\/p>\n\n\n\n

But one thing caught his eye.<\/p>\n\n\n\n

Block #4,821,033<\/strong>
Transactions in block: 187<\/strong><\/p>\n\n\n\n

He scrolled through the list of transactions. Most of them were random\u2014people moving money between accounts, paying for coffee, buying other artifacts. But near the top of the list, he saw a cluster of transactions that all pointed to the same address.<\/p>\n\n\n\n

0x3f2a…9d11: Purchased Emberheart x1 (50 credits)<\/strong>
0x3f2a…9d11: Purchased Emberheart x1 (50 credits)<\/strong>
0x3f2a…9d11: Purchased Emberheart x1 (50 credits)<\/strong><\/p>\n\n\n\n

The same address. Fifteen times.<\/p>\n\n\n\n

Fifteen swords. All bought by the same person. In the same block.<\/p>\n\n\n\n

Jesse scrolled further down the block. Near the bottom, he found his own transaction.<\/p>\n\n\n\n

0x7c1e…2b8f (Jesse\u2019s wallet): Purchased Emberheart x0 (failed)<\/strong><\/p>\n\n\n\n

Failed. Not even a successful purchase that got beaten. Just\u2026 failed.<\/p>\n\n\n\n

He stared at the screen for a long time. The same address. Fifteen swords. How was that possible? The sale was supposed to be one per person. The contract was supposed to enforce it.<\/p>\n\n\n\n

But the contract only checked at the moment of purchase. And if fifteen transactions from the same address were all included in the same block, the contract would see each one as a separate purchase, not realizing they were all from the same person until after the block was finalized.<\/p>\n\n\n\n

By then, it was too late.<\/p>\n\n\n\n

Someone had found a way to buy fifteen copies of a sword that was supposed to be limited to one per person.<\/p>\n\n\n\n

And Jesse had gotten nothing.<\/p>\n\n\n\n

\n\n\n\n

He didn\u2019t sleep well that night.<\/p>\n\n\n\n

He lay in bed, staring at the ceiling, running through the sequence again and again. He\u2019d clicked first. He was sure of it. The chat logs showed other people reporting confirmations minutes after the sale started. But somehow, his transaction had ended up at the bottom of the block, while other transactions\u2014including fifteen from the same greedy address\u2014had ended up at the top.<\/p>\n\n\n\n

It didn\u2019t make sense.<\/p>\n\n\n\n

Unless the system wasn\u2019t first-come, first-served.<\/p>\n\n\n\n

Unless there was something else going on. Something he didn\u2019t understand.<\/p>\n\n\n\n

Jesse grabbed his phone from the nightstand. It was 2:17 AM. He didn\u2019t care.<\/p>\n\n\n\n

He typed into the search bar: why did my transaction take so long<\/em><\/p>\n\n\n\n

The results were confusing. Pages and pages of forum posts, technical documentation, arguments between strangers about something called \u201cgas fees\u201d and \u201cmempool\u201d and \u201cvalidator priority.\u201d He clicked through a few, but the language was dense, full of jargon that made his eyes glaze over.<\/p>\n\n\n\n

Then he found a post that caught his attention.<\/p>\n\n\n\n

Title:<\/strong> \u201cI keep getting front-run. How do I stop it?\u201d<\/em><\/p>\n\n\n\n

Post:<\/strong> \u201cEvery time I try to buy a rare artifact, someone else buys it first even though I know I submitted first. Someone told me this is called front-running. How does it work and how do I beat it?\u201d<\/em><\/p>\n\n\n\n

Top reply:<\/strong> \u201cYou can\u2019t beat front-running if you\u2019re a normal user. The bots are faster and richer than you. Your only real option is to stop buying on networks that allow it. Or find a validator pool that doesn\u2019t participate in MEV extraction. Good luck with that.\u201d<\/em><\/p>\n\n\n\n

Jesse read the reply three times.<\/p>\n\n\n\n

Bots. Validator pools. MEV extraction.<\/p>\n\n\n\n

He didn\u2019t know what half those words meant. But he understood the bottom line: someone was cheating, and there was nothing he could do about it.<\/p>\n\n\n\n

He threw his phone across the room. It hit the wall and landed facedown on the carpet.<\/p>\n\n\n\n

He didn\u2019t pick it up.<\/p>\n\n\n\n

\n\n\n\n

The next morning, Jesse called in sick to GameCrater.<\/p>\n\n\n\n

He wasn\u2019t sick. He just couldn\u2019t face the thought of standing behind a counter, selling digital artifacts to happy customers, while his own display frame stayed empty.<\/p>\n\n\n\n

Instead, he sat at his desk and stared at the block explorer again. The same block. The same fifteen transactions. The same address that had taken everything.<\/p>\n\n\n\n

He started digging.<\/p>\n\n\n\n

The address that bought fifteen swords\u20140x3f2a…9d11<\/strong>\u2014wasn\u2019t a normal user account. It had no profile picture, no display name, no history of human activity. Instead, it showed a pattern that Jesse began to recognize after scrolling through dozens of blocks.<\/p>\n\n\n\n

The address appeared in block after block after block. Always buying. Always at the front of the line. Always taking advantage of sales, auctions, and limited drops.<\/p>\n\n\n\n

It wasn\u2019t a person.<\/p>\n\n\n\n

It was a machine.<\/p>\n\n\n\n

Jesse searched for the address in forums and found dozens of threads from other angry buyers.<\/p>\n\n\n\n

\u201cThis bot got me too.\u201d<\/em><\/p>\n\n\n\n

\u201cSame address! It front-ran my purchase of the Frost Shield.\u201d<\/em><\/p>\n\n\n\n

\u201cI\u2019ve seen this bot on three different marketplaces. It never sleeps.\u201d<\/em><\/p>\n\n\n\n

Someone had given it a name: The Seeker<\/strong>.<\/p>\n\n\n\n

Not because it searched for artifacts. Because it saw<\/em> what other people were trying to buy, and then it sought<\/em> the same thing with a better offer. Faster. Higher. Always ahead.<\/p>\n\n\n\n

Jesse leaned back in his chair. The name stuck in his head. The Seeker.<\/p>\n\n\n\n

He hated it already.<\/p>\n\n\n\n

\n\n\n\n

Three days passed. Jesse didn\u2019t try to buy anything else. He just watched.<\/p>\n\n\n\n

He watched the mempool\u2014a term he\u2019d finally learned from a tutorial video. The mempool was the waiting room of unconfirmed transactions. Every time someone submitted a purchase, a trade, or a payment, it sat in the mempool until a validator picked it up and added it to a block.<\/p>\n\n\n\n

And anyone could watch the mempool in real time.<\/p>\n\n\n\n

Jesse found a public mempool viewer\u2014a simple website that showed a scrolling list of pending transactions. He watched it for hours. Transactions appeared, disappeared, got replaced by other transactions with higher fees.<\/p>\n\n\n\n

He saw the pattern.<\/p>\n\n\n\n

A normal user would submit a transaction with a reasonable gas fee. Thirty seconds later, The Seeker would submit the same transaction\u2014same recipient, same amount\u2014but with a slightly higher fee. Then another user. Then another bot. A cascade of bids, each one trying to jump ahead.<\/p>\n\n\n\n

And the validators? They just picked the highest fees. Why wouldn\u2019t they? They got paid more that way.<\/p>\n\n\n\n

Jesse thought about Nia.<\/p>\n\n\n\n

He\u2019d met her once, six months ago, at a community meetup for people who collected digital artifacts. She was younger than him\u2014sixteen, maybe\u2014but she talked about blockchain technology like she\u2019d invented it herself. She wore oversized glasses and a hoodie from some validator pool he\u2019d never heard of.<\/p>\n\n\n\n

He remembered her saying, \u201cMost people think validators are just computers. But someone has to run them. Someone has to decide which transactions go in the block.\u201d<\/p>\n\n\n\n

At the time, he hadn\u2019t thought much about it. Now, he wondered.<\/p>\n\n\n\n

He found her contact info in an old group chat.<\/p>\n\n\n\n

Jesse:<\/strong> Hey. This is random. You\u2019re a validator operator, right?<\/em><\/p>\n\n\n\n

The reply came faster than he expected.<\/p>\n\n\n\n

Nia:<\/strong> Depends. Who\u2019s asking?<\/em><\/p>\n\n\n\n

Jesse:<\/strong> Jesse. We met at the Collector Con thing. You were explaining MEV to someone and I pretended to understand.<\/em><\/p>\n\n\n\n

Nia:<\/strong> Oh yeah. The guy who kept nodding but clearly had no idea what I was saying.<\/em><\/p>\n\n\n\n

Jesse:<\/strong> That\u2019s me.<\/em><\/p>\n\n\n\n

Nia:<\/strong> What do you need?<\/em><\/p>\n\n\n\n

Jesse hesitated. Then he typed the whole story. The Emberheart sale. The fifteen swords. The address that bought them all. The Seeker.<\/p>\n\n\n\n

Nia:<\/strong> Ah. You got front-run.<\/em><\/p>\n\n\n\n

Jesse:<\/strong> That\u2019s what I figured. But I don\u2019t understand how it works or why validators allow it.<\/em><\/p>\n\n\n\n

Nia:<\/strong> Because it\u2019s profitable. I can explain more. But not over text.<\/em><\/p>\n\n\n\n

Jesse:<\/strong> Can we meet?<\/em><\/p>\n\n\n\n

There was a long pause. Jesse watched the typing indicator appear and disappear, appear and disappear.<\/p>\n\n\n\n

Nia:<\/strong> Library. Tomorrow. 3 PM. Study room C. I\u2019ll bring my laptop.<\/em><\/p>\n\n\n\n

Jesse:<\/strong> Thank you.<\/em><\/p>\n\n\n\n

Nia:<\/strong> Don\u2019t thank me yet. You might not like what I have to tell you.<\/em><\/p>\n\n\n\n

Jesse put down his phone and looked at the empty display frame on his wall.<\/p>\n\n\n\n

Somewhere out there, The Seeker was still scanning the mempool, still jumping ahead, still taking what should have been his.<\/p>\n\n\n\n

Tomorrow, he\u2019d start to understand how.<\/p>\n\n\n\n

And maybe\u2014just maybe\u2014he\u2019d start to figure out how to fight back.<\/p>\n\n\n\n

Table of contents:<\/em><\/strong>
Introduction<\/a>
Chapter 1: The Mempool<\/a>
Chapter 2: A Transaction in the Dark<\/a> <<<<<< NEXT<\/strong>
Chapter 3: The Gas Auction<\/a>
Chapter 4: The Sandwich Attack<\/a>
Chapter 5: The Priority Fee War<\/a>
Chapter 6: A Fair Ordering Protocol<\/a>
Chapter 7: The Commit-Reveal Scheme<\/a>
Chapter 8: The Encrypted Mempool<\/a>
Chapter 9: The Time-Weighted Consensus<\/a>
Chapter 10: A Just Sequence<\/a><\/p>\n

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Jesse\u2019s bedroom smelled like old pizza and the particular kind of desperation that only comes […]<\/p>\n

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