AltLayer Documentation
  • 👋Welcome
    • Overview
  • Restaked Rollups
    • VITAL for Decentralised Verification
      • Tier-1 Finality
      • Tier-2 Finality
      • Tier-3 Finality
    • MACH for Faster Finality
      • Interoperability via MACH
    • SQUAD for Decentralised Sequencing
    • Staking of dApp Token
  • Wizard
    • Introduction
    • Technical overview
    • Create AVS
    • Manage AVS
    • Operator management
    • Hosted operator API (BLS based)
    • Custom AVS specification
      • Constructor specification requirements
      • Import Externally-Deployed AVS
    • Report bug or submit a feature request
  • Autonome
    • Deploy AI Agent
    • Autonome API guide
    • Uploading your own agent framework
    • Twitter/X login troubleshooting guide
  • ♾️AltLayer-Facilitated Actively Validated Services
    • Overview
    • AltLayer MACH AVS
      • Operator Guide
      • User Delegation Guide
    • Cyber MACH AVS for Cyber L2
      • Operator Guide
      • User Delegation Guide
    • DODOchain MACH AVS for DODO Chain
      • Operator Guide
      • User Delegation Guide
    • Fast Finality Layer for Soneium
      • Operator Guide
      • User Delegation Guide
    • Xterio MACH AVS for Xterio Chain
      • Operator Guide
      • User Delegation Guide
  • Upgrade Guide
  • 🥩ALT Restaking
    • Staking Info & Parameters
    • Restake ALT
    • Delegating reALT
    • Check and Claim Staking Rewards
    • Unstake ALT
    • Migration from Xterio (Legacy) ALT Pool to Xterio Restaked ALT Pool
    • Testnet reALT faucet
  • Rollup-as-a-Service
    • What is Rollup-as-a-Service (RaaS)?
    • AltLayer's RaaS Offering
    • RaaS Onboarding Guide
      • Optimism Rollup FAQ
      • Arbitrum Rollup FAQ
    • AltLayer Ecosystem
    • Clients in the Spotlight
    • Pricing Model
  • External Integrations
    • Account Abstraction using Biconomy
    • Enabling permissionless interoperability on AltLayer Rollup with Hyperlane
      • Deplying Hyperlane Warp Routes for ERC20 Token Bridging
      • Running Off-chain Agents
      • Setting up the bridging UI
    • Cross-chain Interoperability using Celer
      • Fungible Token Bridging
      • Non-fungible Token Bridging
      • Generic Message Passing
      • cBridge SDK
  • AltLayer's In-House Rollup Stack in Depth
    • How does AltLayer's in-house rollup stack work?
    • Decentralized Sequencer Set
    • Security via Fraud Proof
  • Rollup Types
    • Flash Layer Rollups
      • Example Use cases
        • NFT Mint Events
        • Games
        • Event Ticketing
    • Persistent Rollups
  • Core Features of AltLayer's In-House Rollup Stack
    • Modular
    • Elastic
    • Multi-VM Support
    • Fraud Proofs
    • Decentralized Sequencers
    • Tiered-Finality
  • FlashLayer Showcase
    • AltLayer's POAP NFTs Collection Mint
      • Performance Test in the Wild
    • Dark Forest Community Round
    • Oh Ottie! NFT Collection Mint
    • Dark Forest Community Round for Jump Crypto's Pit Event
    • Ottie 2048
    • Other demos
      • Fraud Proof Demo
      • Flash Layer Demo
      • Rollup Launchpad Demo
      • FlashGPT Demo
  • Implementation Status
    • Roadmap
    • Development Status
  • Community & Support
    • Community
    • Support
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  1. Restaked Rollups

VITAL for Decentralised Verification

PreviousOverviewNextTier-1 Finality

Last updated 1 year ago

Vital acts as an enshrined verification layer for rollups. It consists of a network of AVS-registered operators that verify all new states proposed across by SQUAD operators. Vital operators detect invalid state roots and can challenge SQUAD operators in a bisection protocol.

Vital can also operate with whereby Vital operators demand SQUAD operators to create a ZK proof for a disputed state root instead of engaging in a bisection protocol. Another operation mode would be to verify intermediate proofs that do not need to go to an L1. Vital is crucial as the Mach AVS leverages it to provide a fast finality layer.

VITAL consists of a network of operators that verify a new state. Unlike the pre-confirmation offered by a rollup sequencer, the confirmation provided by the VITAL is much stronger than usual due to the underlying economic backing. This allows assets to be instantly withdrawn.

optimistic ZK proofs