Citrea
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  • 👋Welcome
    • Getting started
  • ⛓️Technical Specs
    • TL;DR
    • Technical Introduction
    • Characteristics
      • Execution Environment
      • Block Production
        • Pre-Confirmations
        • Decentralized Sequencer Network
      • Proof Generation
      • Nodes
      • Bitcoin Settlement: Trust-minimized BTC Bridge
        • BitVM
        • Optimistic Verification
    • Security Properties
      • Validity
      • Data Availability
      • Re-org Resistance
      • Censorship Resistance and Force Transactions
        • Escape Hatch
  • 👤User Guide
    • Run Citrea Full Node
      • Bitcoin Testnet4
        • Testnet4 Docker Setup
        • Build Testnet4 from Source
      • Citrea Full Node
        • Citrea Binary Executable
        • Build Citrea from Source
    • Use Citrea Testnet Faucet
    • Installing an EVM Wallet
    • Taproot Recovery Address
  • 📖Developer Documentation
    • Kickstart
    • Deployment Guide
      • Deploy a Smart Contract Using Remix
      • Deploy a Token
      • Configure Hardhat
    • System Contracts
      • Bitcoin Light Client
      • Bridge
      • Fee Vaults
    • Chain Information
    • RPC Documentation
    • Deploy a Bitcoin Appchain (L3)
  • 🔎Future Research
    • Decentralized Sequencer Network
    • Lightning Integration
    • Multi Prover
    • Multi VM Approach
    • Trustless Atomic Swaps
    • Trustless Settlement
    • Volition Model
  • 🌐Community
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      • Meetup Guide
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  1. Future Research

Trustless Settlement

PreviousTrustless Atomic SwapsNextVolition Model

Last updated 3 months ago

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In order to achive trustless settlement for Citrea, there needs to be opcode change(s).

Mainly, an opcode that can verify ZK proofs and a would be required to implement completely trustless Bitcoin settlement. Specifically, it is theoretically possible to implement a trustless bridge using OP_CAT opcode, if activated.

In the current architecture, BitVM/Clementine provides a trust-minimized settlement with 1-of-N honest minority trust assumption - which is a great improvement over the existing insecure implementations of sidechains. In case a suitable opcode is added to Bitcoin, Citrea will also adopt a cheaper/securer/faster/trustless solution if possible.

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covenant opcode