# What is Rails? DeFi Protocol Guide

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**Publisher:** Decentralized Finance Publication (https://decentralized-finance.io)
**Author:** Marcus Reid
**Category:** Top DeFi Protocols
**Updated:** Apr 23, 2026
**Trust:** Independent, ad-free editorial research. No display advertisements, no paid protocol coverage, no affiliate-driven rankings.

## Summary

Rails is a perpetual trading platform that merges rapid centralized order processing with blockchain-based asset custody on the Ink layer-2 network. The system aims to deliver swift trade execution while maintaining transparency and security advantages inherent to blockchain infrastructure.

Rails functions as a perpetual trading venue that merges rapid centralized order processing with blockchain-based custody of user assets. The platform endeavors to achieve quick trade settlement while preserving the security and clarity that blockchain networks provide.

## Overview

Rails adopts a dual-layer architecture intended to combine benefits from both centralized and decentralized models. The system employs a centralized order-matching mechanism capable of processing matched orders at sub-millisecond intervals. Simultaneously, user finances are retained within a vetted smart contract deployed on Ink, a layer-2 solution built by Kraken. This configuration enables users to maintain ownership of their assets while accessing rapid trade fulfillment.

The platform emphasizes transparency via cryptographic transaction aggregation posted to the blockchain. Users have the capacity to authenticate their transactions by examining them within a Merkle tree structure via a transaction verification tool. This method delivers confirmability while safeguarding user anonymity. The blockchain-based asset custody framework, backed by reviewed smart contracts, represents a vital security measure designed to mitigate dangers associated with concentrated asset management.

## History

Rails originated in 2023 under the direction of Satraj Bambra, Megha Bambra, Rick Marini, and Brent Vegliacich. The core team had formerly collaborated on BlockEQ, a digital asset custody platform subsequently bought by the Canadian trading firm Coinsquare in 2018.

The organization secured $6.2 million in Seed financing during March 2024. Slow Ventures spearheaded this investment, alongside contributions from CMCC Global, Round13 Capital, and Quantstamp.

Rails disclosed a subsequent $14 million capital raise in June 2025, bringing cumulative financing to $20 million. The entity formalized its incorporation in March 2024 and scheduled its public release for summer 2024.

Satraj Bambra, Chief Executive and Co-Founder, offered commentary on the platform's development:

> "Having observed the sector grapple with the tradeoff between execution speed and asset self-custody, Rails represents the first exchange I've encountered that maintains both safety and performance."

## Technology

Rails implements a layered technological framework merging centralized and distributed elements.

On-chain infrastructure operates exclusively through Ink, a layer-2 solution engineered by Kraken.

- Centralized Order Matching: Order routing and execution are administered by a centralized system engineered for rapid turnaround, targeting sub-millisecond settlement. The system is built to process substantial trading activity.
- On-Chain Asset Custody: User assets are maintained within a smart contract residing on the Ink layer-2 platform. This contract monitors asset flows, encompassing inflows, outflows, and transaction charges. The contract has undergone independent security reviews.
- Transaction Authentication: Transactions undergo cryptographic bundling and are registered on-chain. This bundling leverages Merkle structures to accommodate transactions while preserving user confidentiality. The Rails Explorer permits users to authenticate their transaction records.
- Zero-Knowledge Proofs: The system incorporates zero-knowledge cryptographic methods facilitating confirmation of portfolio values and transaction records without exposing confidential information.

## Key Features

Rails identifies numerous distinguishing characteristics:

- Dual-Layer Architecture: Integrates centralized order matching with blockchain asset custody.
- Rapid Order Settlement: Centralized matching system engineered for sub-millisecond turnaround.
- Blockchain Asset Custody: Assets rest in reviewed smart contracts housed on the Ink blockchain.
- Transparency and Authentication: Transactions are bundled via Merkle structures and registered on-chain for confirmation through the Rails Explorer.
- Safeguarding Measures: Incorporates reviewed smart contracts and advanced cryptographic mechanisms including zero-knowledge proofs.
- Developer APIs: Furnishes sophisticated application programming interfaces serving traders and professional customers.
- Simulated Trading: Supplies a simulated trading environment allowing users to familiarize themselves with the platform.

## Use Cases

Rails serves primarily as a platform for perpetual derivatives trading. Initially, the system facilitates perpetual derivative agreements backed by stablecoin collateral. The system architecture targets dealers requiring both rapid execution and individual custody of their resources.

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