Multichain Systems

‍Introduction

AVS are like isolated intranets - useful but limited in scope. Just like intranets couldn’t scale beyond their walls, siloed AVS can’t build larger systems of coordination or logic. Today, developers must maintain redundant infrastructure per chain.

Interoperability is to AVS what TCP/IP was to the internet—it turns disconnected systems into a network of networks. The result is a more fluid, efficient, and composable system where users and developers aren’t stuck in silos. Interoperability becomes the backbone of a programmable, multichain distributed system.

Othentic introduces the Multichain component, allowing distributed systems (”AVS”) to operate in any EVM environment, simultaneously.
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Using the Othentic Stack, developers apply complex system design on decentralized foundations at scale. Off-chain services transform into distributed systems.

With the introduction of the Multichain components, developers can now build a system that serves users from multiple chains with one execution environment.
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Deliver verifiable computation to any EVM environment

Systems built with the Othentic Stack are natively multichain, delivering verifiable computation to any destination EVM environment, and expanding system interoperability across chains. With the new multichain capabilities, developers can natively extend product offerings across multiple chains.
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Customized logic and hooks

Hooks are powerful components that allow developers to inject custom logic. They enable the integration of external processes, providing flexibility and control over how Tasks are handled within the system.

Developers can configure independent Hooks per L2, enabling custom task logic tailored to each network. Additionally, teams can define routing logic to execute tasks on specific chains based on predefined conditions.
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Staking, Slashing, and Rewards

The Multichain component comes with no change to the staking module—all assets are committed to the AVS on Ethereum mainnet, allowing for service expansion to any network with no additional setup costs or operational overhead. Staker and Operator Rewards are audited based on participation across all supported chains. This design also enables the AVS to define Multichain Slashing Conditions—govern operator activity across all connected chains and slash collateral in case of misbehaviour. Smart contracts on each L2 manage their own reward record for optimized financial operations.
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State Sync

When a Task is executed, results are submitted to the configured L2 network(s). These L2s stay fully in sync with the L1 contracts, so the state remains consistent—no external coordination or custom logic needed.

This update makes it easier to build AVSs that work across multiple L2s at once—perfect for services needing access to states across chains. AVS teams can now create more interoperable and reliable systems without adding extra technical overhead.
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Use Cases
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Multichain Oracle

A multichain oracle AVS delivers uniform, secure, and cost-effective operations across multiple L2s. It aggregates quotes from multiple L2s plus trusted off‑chain sources, validates them, and posts the final value on each network in real time. By closing data gaps that invite arbitrage and systemic risk, the oracle provides developers and users with accurate data. Data feeds can be written directly to on‑chain storage or broadcast through Hooks that automatically update downstream protocols.

Multichain DeFi agents

Processing infinite orders of magnitude of financial strategies from DeFi protocols is infeasible for human consumption. An AVS-verified agent system that autonomously interacts with DeFi protocols across multiple chains on behalf of users—handling tasks like yield farming, rebalancing, or collateral management. The AVS coordinates agent task execution across chains, verifies interactions with DeFi protocols, and slashes malicious behavior.

Intent Solvers

This AVS coordinates a pool of independent solvers that execute user intents—swaps, transfers, contract calls—across multiple L2s. It assigns solver roles, verifies execution conditions, and finalizes results through a consensus process, slashing those who front‑run or misreport. Built‑in MEV‑reduction strategies make execution fairer and more efficient, while users gain confidence that their intents will be filled optimally and verifiably on any supported chain.

Multichain Bridges

This AVS design decentralizes message passing by replacing multisig accounts and trusted relayers with an economically aligned operator set. Operators monitor several L2s, verify messages and states via light clients or ZK‑proofs, and authorize transfers using threshold signatures. Misbehavior triggers slashing, while built‑in liveness guarantees prevent stuck funds. The result is a bridge that inherits on‑chain economic security and removes single points of failure.

Liquidation Keepers

Keepers play a crucial role in maintaining the health of DeFi protocols by acting as incentivized parties who take advantage of arbitrage opportunities to boost the overall health of the protocol. AVS‑run keepers simultaneously monitor lending markets on any L2 for positions that slip below required collateral ratios. They rely on real‑time price and position data, validated with light clients or ZK proofs, to act the moment a threshold is breached. Once triggered, operators execute the liquidation, preserving protocol solvency without centralized bots or race conditions.

Multichain Orderbook

Using a Uniswap V4 hook, this AVS maintains one shared orderbook that matches buyers and sellers across different L2s. Operators collect orders, verify their validity, and settle trades atomically—often with optimistic relays or similar trust‑minimized techniques. Traders on Chain X can fill liquidity on Chain Y without leaving their home network, breaking down silos and deepening overall liquidity. The unified orderbook increases capital efficiency while preserving on‑chain security guarantees.

Automation Networks

Operators in the AVS subscribe to event logs and contract deployments on every supported chain and trigger predefined actions—such as contract calls, token mints, or governance executions—on target chains. Because decisions are made collectively and enforced with slashing, applications get low‑latency, trustless automation instead of relying on a single off‑chain scheduler. This lets multi‑chain dApps react to on‑chain events promptly, safely and transparently, improving UX and reducing operational risk.

Multichain Lending Markets

An AVS‑backed lending layer lets users post collateral on one L2 and borrow on another without trusting middlemen. Operators continuously verify collateral and debt positions across chains using light clients or zk‑proofs, then coordinate borrow and repay actions with threshold‑signed transactions. This unifies fragmented liquidity, expands borrowing power, and keeps positions safe through cryptoeconomic enforcement. Users enjoy seamless credit across L2s and avoid bridge costs and risks, while protocols avoid custodial risk.

Exploit Prevention System

The AVS continuously analyzes protocol activity across chains, using rule‑based checks or ML models to spot anomalies like sudden liquidity drains or oracle manipulation. When suspicious behavior is detected, operators can vote to pause affected contracts or de-risk positions by executing transactions on any supported network. Rapid, decentralized response prevents an exploit on one chain from cascading through shared liquidity or logic. By embedding economic penalties for negligence or collusion, the system aligns everyone on early detection and containment.
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Framework Architecture

The Othentic Stack pioneered an innovative approach of decoupling off-chain verification logic(High Throughput Low Latency process), from the management of stake, slashing, and governance (High Impact Low Throughput process), designed to balance cost-efficiency, security, and high availability by leveraging both L1 and L2. This separation enabled developers to deploy verification on L2, optimizing performance and scalability by leveraging the Attestation Center.

While these L2s act as the point of contact for Task submissions, L1 remains the single source of truth for stake, operator management, and governance. It communicates with each connected L2 to keep them in sync—ensuring consistent operator registration, voting power, and decision-making across networks.
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The Othentic Stack is designed to balance cost-efficiency, security, and high throughput by leveraging both L1 and L2 layers.

• L1: The governance layer is deployed on L1 to ensure the highest level of security, integrate with the shared security protocol contracts, and manage critical governance operations.
• L2: The task verification layer is deployed on L2 to minimize operational costs while maintaining availability, high throughput, and low latency. L2s provide a faster and cost-effective environment for handling task submissions and attestations. Combined with Hooks, a powerful feature that allows developers to inject custom logic, AVS can execute custom flows in any EVM environment.
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For a multichain AVS, the following contracts including AttestationCenter, L2MessageHandler, OBLS and InternalTaskHandler are deployed on all selected L2 networks. These contracts have the following functions within the Othentic Stack:

• AttestationCenter: On-chain gateway for AVS Operators to submit, verify, and track off-chain tasks. It manages task lifecycle data, enforces reward/penalty mechanisms, and provides a unified view of AVS activity.
• L2MessageHandler: Each AVS deploys its own message handlers to facilitate message-passing between L1 and L2. L2 Message Handler handles incoming messages from L1, including Operator registration / de-registration, and payment.
• OBLS: The primary role of OBLS is to manage operators, aggregate voting power, and verify BLS signatures based on a threshold of required votes.
• InternalTaskHandler: Processes consensus-based internal tasks enabling decentralized network maintenance by AVS Operators. eg. voting power sync across L1 and L2.

Tasks executed by the AVS system now include a target chain parameter, letting the AVS know where they should ultimately be settled. Based on the service provided, task submissions can also include instructions on where to fetch the data from, allowing nodes to leverage existing connections to multiple networks.
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Take your AVS Multichain with Othentic Stack

The multichain capabilities of the Othentic Stack unlock an infinite design space for AVSs. Teams can focus on building the core service while leveraging multichain settlement of AVS tasks, all while stake, rewards and slashing is abstracted for operators. This is achieved using a three-pronged approach:

• Deploying AVS Smart Contracts on any network
• Utilizing AVS Node Software to sync AVS State across networks
• Settling tasks to any network
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We can’t wait to see what you’ll build, and would love to support your development efforts. If you’re interested in learning more, check out the Othentic Docs, explore the Othentic ecosystem in the Othentic Hub or reach out to the team via Discord.

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