Infrastructure
Lombard's infrastructure layer provides the security, bridging, and developer tools that power the protocol. This page introduces each component — for technical deep dives, see the linked pages.
Security Consortium
The Security Consortium is a network of 15 institutional members who collectively authorize every critical operation in Lombard — deposits, mints, redemptions, and cross-chain transfers.
The consortium operates the Lombard Ledger, a Cosmos-based appchain where members independently verify operations and sign authorizations. Every action requires supermajority (two-thirds) agreement. No single party — not even Lombard — can mint LBTC without legitimate Bitcoin deposits verified by the consortium.
Members include OKX, Galaxy, DCG, Kraken, Wintermute, Amber Group, Antpool, F2Pool, Figment, Kiln, P2P.org, Chorus One, Cubist, Informal Systems, and Nansen.
→ How the Security Consortium works
Cross-Chain Bridging
LBTC and BTC.b are natively available across multiple blockchains including Ethereum, Base, Arbitrum, Optimism, BNB Chain, and others.
Lombard uses industry-standard bridges — Chainlink CCIP, LayerZero, and IBC — but adds an extra security layer: dual verification. Every cross-chain transfer must be approved by both the bridge validators and the Security Consortium. An attacker would need to compromise both systems simultaneously.
Oracles
Lombard provides on-chain data feeds for integrators and DeFi protocols that need reliable information about LBTC and BTC.b.
Exchange rate feeds: The current LBTC/BTC exchange rate, updated as yield accrues. Essential for protocols that need to price LBTC correctly.
Proof of Reserve: Real-time verification that LBTC and BTC.b are fully backed by Bitcoin. Chainlink Proof of Reserve feeds update every 10 minutes, allowing anyone to verify collateralization on-chain.
These feeds enable DeFi protocols to safely integrate LBTC as collateral, build accurate pricing into lending markets, and provide users with transparent reserve verification.
Bitcoin Connect
Bitcoin Connect is Lombard's developer platform enabling developers to build with Bitcoin on any chain, protocol, or application. It is an evolving suite of developer tools including the Lombard SDK, APIs and Oracles that can be freely accessed to integrate Lombard's assets and infrastructure on any chain, protocol or application.
For more information, see the Build documentation.
Next Steps
Protocol Architecture — Technical deep dive into the Lombard Ledger and Security Consortium
Security Model — How Lombard protects user funds
Bridging — Cross-chain architecture and supported networks
Deployed Contracts — Contract addresses across all chains
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