Block Building Infrastructure

We order
the blocks
that order
Ethereum

Searchers find billions in MEV but keep almost nothing. Ordexis builds the blocks itself — a vertically integrated searcher-builder on Ethereum, extending across OP Stack L2s, retaining 100% of captured value instead of the 10% a typical searcher keeps.

L1+L2
Multi-Chain
100%
Value Retained
2026
ePBS Window
Ox BUILD
Chains We Build On

One engine,
many networks

Not every chain works the same way. On Ethereum's public mempool we search and build. Most L2s run private sequencers — there the edge is building blocks, not racing a mempool. One engine, adapted to how each chain actually orders transactions.

Ethereum
L1 · Public Mempool
● Search + Build
Base
OP Stack · Sequencer
● Builder Wedge
Optimism
OP Stack L2
● Builder Roadmap
Arbitrum
Private Mempool · Timeboost
● Evaluating
Polygon
L2 · Public Mempool
● Search Roadmap
Why Now

A door that
won't stay open

Block building has been a closed game — three builders, a relay trust model, and reputation moats that lock newcomers out. Two shifts are prying it open at the same time, and neither one lasts.

01

ePBS Resets the Board

EIP-7732 lands in the Glamsterdam hard fork and removes the relay trust model that keeps new builders out. For the months after, it is the most level playing field builders will ever see.

02

L2 Building Is Opening

External block production on OP Stack is still maturing, and the operator and RaaS relationships that will decide who builds L2 blocks are being formed now — not yet locked in.

03

The Window Closes

Once incumbents adapt to ePBS and L2 building fills in, the opening is gone. The advantage goes to whoever is already built and running when the rules change.

What We Build

Infrastructure for
the block supply chain

The MEV supply chain is structurally broken. Thousands of searchers find billions of dollars in profitable opportunities — then have to give 85 to 95 percent of that value to three builders just to get included in a block. The people doing the work keep almost nothing.

Detection

Proprietary intelligence systems that monitor chain state and mempool activity across multiple geographic vantage points in real time.

Execution

Machine learning agents trained on live network data that optimize execution parameters continuously as market conditions evolve.

Block Production

Full-stack block building on Ethereum L1, extending to OP Stack L2s through operator relationships as external block production matures. From transaction ordering to network submission.

What We Offer

Value returned,
not extracted

Ordexis captures value that already exists on-chain and shares it back with the protocols and users who create it. Here is what working with us provides.

01

MEV Protection

Shield your users from toxic extraction. We backrun arbitrage that already exists — we never sandwich or front-run — so your users keep their slippage and your protocol keeps its reputation.

For protocols & L2s
02

Order-Flow Revenue Share

Your transactions generate backrun value that leaks to external builders today. We return a share of that captured value to the protocol that created it, instead of extracting it and keeping it.

For DEXs & DeFi
03

L2 Block Building

Non-toxic block production for OP Stack chains. As external block building on Base and Optimism opens up, we bring an integrated searcher-builder to the operators and RaaS providers shaping who builds those blocks.

For rollups & sequencers
04

Integrated Search-to-Build

One system from detection to block assembly. No external builders, no bribe tax, no value leakage. Nine specialized strategies feed directly into our own builder running on Reth and rbuilder.

The full stack
Founder

Built by an infrastructure engineer

Block building is infrastructure. The person building it should know infrastructure at the hardware level.

Ammon D. Jackson
Founder

15 years of datacenter infrastructure engineering — Dell, eBay, Microsoft. Designed and operated production systems handling millions of transactions across compute, storage, and networking layers at enterprise scale. Built the entire Ordexis platform as a solo technical build: smart contracts, reinforcement learning agent, mempool intelligence system, flash loan execution engine, and a multi-region bare-metal architecture spanning 7 servers across 5 countries.

Dell eBay Microsoft Solidity PyTorch Linux Systems
Principles

What we will
and won't do

MEV can protect users or prey on them. Ordexis captures value that already exists on-chain without degrading the experience of the people and protocols we build for. That line is not a marketing position — it is written into which strategies we run.

+

What we do

  • Backrun, never front-runWe capture arbitrage that exists after a trade settles. We never insert ahead of a user to worsen their price.
  • Atomic, self-funded executionEvery trade is flash-loan-funded and settles in a single transaction. No user counterparty risk, no leftover exposure.
  • Return value to protocolsBackrun value that leaks to external builders today is shared back with the protocols whose order flow creates it.
  • Build in the openePBS-native block production. No relay trust games, no privileged access, no hidden reordering.

What we won't do

  • No sandwich attacksWe will not bracket a user's transaction to extract value from their slippage. This strategy is excluded by design, not by policy.
  • No front-running usersWe will not reorder or race ahead of ordinary transactions to worsen their execution.
  • No toxic order flowWe will not degrade the user experience of any protocol we partner with. Protection is the product.
  • No value extraction from the vulnerableOur margin comes from vertical integration and infrastructure — not from the people using the chain.

Restricted Access

Detailed architecture, strategy breakdown, and roadmap are available to partners, investors, and approved parties.

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Architecture

Full stack
under one roof

Detection, execution, and block assembly in a single vertically integrated system. No middlemen. No bribes. No value leakage.

Detection

AEGIS

Records every pending transaction with microsecond precision across four geographic vantage points. Builds a proprietary intelligence dataset that compounds in value daily and becomes unreproducible over time.

Execution

APEX

Deep reinforcement learning agent with a 14-feature state space and 405-action space, trained on live mempool data via priority experience replay. Adapts gas, strategy, and timing without manual intervention.

Infrastructure

Builder

Reth full node with rbuilder running in-process. Assembles blocks containing our own bundles at zero bribe cost. Submits directly to proposers via ePBS. On OP Stack, op-rbuilder-based building integrates with the sequencer operator's stack — pursued through operator relationships.

9
Flash Loan Hunters
7
Server Architecture
<1ms
Target Local RPC
4
Mempool Vantage Points
Competitive Edge

Why Ordexis wins

Thousands of searchers find billions in MEV. But they have to give 85 to 95 percent of that value to three builders who control 75% of blocks — just to get included. The relay trust model locks new builders out. ePBS changes that.

01

Vertical Integration

Searcher feeds directly into builder. Zero network latency, zero bribe overhead. A $50 opportunity stays $50 — not $5 after an 85% builder tax. Same code, 10x margin.

02

Proprietary Intelligence

AEGIS is built to record mempool data from Ashburn, London, Frankfurt, and Singapore. After 90 days of collection this becomes a dataset no new entrant can replicate without 90 days of their own.

03

ePBS Timing Window

EIP-7732 eliminates relay gatekeeping. The 3-6 month transition after Glamsterdam creates the most level playing field new builders will ever see. We're building natively for the new rules.

04

L2 Positioning

On OP Stack, block building is the sequencer operator's role, not a permissionless race. Our edge is arriving early to the operator and RaaS relationships that decide who builds L2 blocks — with the searcher stack already running on those chains.

Roadmap

Searcher to
block builder

Revenue at every phase. Each stage funds the next while building toward full vertical integration across L1 and L2.

Phase 0 — Now

Detection Engine

Searcher on Ethereum mainnet. Validate APEX win rates. Collect AEGIS intelligence. Generate returns from flash loan arbitrage across 9 specialized strategies.

Phase 1 — Month 2-3

Self-Hosted Node

Reth full node on dedicated hardware. Eliminate RPC dependencies. Zero-latency state access. Direct mempool feed via txpool API.

Phase 2 — Month 3-5

L1 Builder

rbuilder alongside Reth. Own blocks containing own bundles at zero bribe cost. Register with relays. Win slots during low-competition windows.

Phase 3 — Month 5-7

L2 Searcher — Base

Searcher live on Base and OP Stack — flash loan hunters at $0.01-0.10 gas per trade, adapted to the flashblocks stream. L2 block building pursued via operator and RaaS relationships as external production opens up.

Phase 4 — Month 7-10

Order Flow Acquisition

MEV protection agreements with Base protocols. Revenue sharing on captured backrun value. Each deal compounds block value and win rate.

Phase 5 — Month 10+

Cross-Domain MEV

Simultaneous L1 and L2 building enables cross-chain arbitrage. Atomic inclusion across domains. The moat deepens with every month of data and every protocol partner.

Partners

Who we're
looking to work with

Ordexis is building relationships ahead of the block-building market opening up on L2. If any of these describe you, we should talk.

01

L2 Protocols & OP Stack Chains

Base and OP Stack teams that want MEV protection for their users and a share of the backrun value their order flow generates — before external builders arrive and take it.

02

DeFi Protocols & DEXs

Protocols whose trading activity leaks value to third-party builders today. We return that value through revenue-sharing order-flow agreements instead of extracting it.

03

Wallets & Aggregators

Teams routing user transactions who want protected execution and a cut of the value their flow creates, rather than handing it to whoever builds the block.

04

Investors & Capital Partners

Backers who understand the searcher-to-builder thesis and the ePBS timing window, and want exposure to vertically integrated block production across L1 and L2.

The blocks won't
order themselves

Looking for protocol partners who want MEV protection for their users and a share of captured value.

Get in touch