The Altius Stack
Altius builds a high-performance matching engine for high-volume trading, a state-root engine for chains with large state, and a control plane for compliance and permissions, all of which run with Altius L1, an EVM settlement layer built on Reth.
Use the whole stack, or add the state-root engine to a Reth-based chain you already run
HPEC
A matching engine for high-frequency, high-volume financial workloads
- Execution
- <1ms
- Batch interval
- 60ms
- Transactions per second
- 10,000+
HPEC, the high-performance execution coprocessor, is non-EVM and works across asset, order, and trade types. It settles the results to Altius L1 in batches
Dedicated to your order flow
HPEC runs only the orders you route to it, so they never wait behind other applications' transactions
Assets stay on Altius L1
If HPEC is unavailable, users withdraw their assets straight from the contracts that hold them
Used in Altius Venue and Altius Lane
SSMT
The state root engine that solves state bloat
SSMT computes each block's state root, the hash that commits to every account and its storage. Without SSMT, state growth becomes a hardware problem
Checked against the block header
The client compares each root SSMT returns against the block header, and a block whose root doesn't match is rejected
Built for chains using Reth
SSMT can be integrated into a Reth-based chain whose state trie is a byte-exact Ethereum trie
The speedup grows with state
As accounts and storage accumulate, SSMT's performance advantage over Reth also grows
Used in Altius Venue, Altius Lane, and Altius Charter
Control plane & privacy
Who can do what on your network
Control plane is the admin layer of an Altius network. Your administrators assign roles, run approvals, and set transaction policy through its admin API, separate from the network's public interface
Roles and a second approver
Permissions are assigned by role across validators and validator changes wait for a second, distinct approver
Rules the network enforces
Deny lists, allow lists, and attestation requirements are stored onchain and checked on every transaction
Confidentiality you set
Amounts, balances, and contract state can be kept confidential to the members you admit, as needed
Used in Altius Venue, Altius Lane, and Altius Charter
Altius L1
An EVM-compatible network with deterministic finality
- Transactions per second
- 6,000+
- Configurable block interval
- 60ms
Altius L1 runs Reth + SSMT for execution and BFT consensus, and the two connect over the standard Engine API. A block is final once consensus commits it, and it can't be reorged after that
EVM-compatible to Prague
Existing contracts, ABIs, tooling, and wallets work out-of-the-box
You choose the fee token
Network fees are paid in the token(s) you set, and gas can be sponsored, configured to the ecosystem's token, or USD-denominated
Configured per network
Each network sets its own block interval, validator set, and protocol access permissions
Used in Altius Venue, Altius Lane, and Altius Charter
Packaged for trading venues, payments, and institutional networks
Altius L1 is the base. The control plane runs on it, and HPEC settles to it. SSMT is modular and can be run on a Reth-based chain