Lightec
  • Getting Started
    • Background
    • Introducing Lightec
  • 🚀OP_ZKP Opcode Upgrade Proposal
    • OP_ZKP Proposal: One Year Milestone
    • OP_ZKP:Opcode Upgrade Proposal
  • 🌁zkBTC Bridge
    • Overview
    • The Technical Architecture
    • Proving-as-Mining Mechanism
    • What's $zkBTC?
    • Key Features
  • 📌Lightec Litepaper
  • 🛡️Security & Technical Details
    • Upgradable ZKP Verification Modules
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    • Fund Reserve for Re-Pegging
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    • 📃Testnet Tutorial
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  1. zkBTC Bridge

The Technical Architecture

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Last updated 7 months ago

How to mint $zkbtc token?

Users can simply mint $zkBTC by depositing $BTC to a designated Bitcoin address manage by ZKP, then generating a proof off-chain and validating it within an Ethereum smart contract. This process ensures that the smart contract verifies the deposit transaction on the Bitcoin network before minting the corresponding $zkBTC tokens for the user, upholding the 1:1 pegging.

How to redeem $ bitcoin?

For redemption, users call the Ethereum smart contract to destroy some of their $zkBTC tokens at any time. A proof is then generated off-chain. Depending on the activation of the proposed opZKP opcode, this proof is verified either by the Bitcoin network directly or in a tamper-proof container as an interim solution, followed by UTXO expenditure.

When OP_ZKP is activated

Once OP_ZKP is activated, the proof will be verified by the Bitcoin network to authorize the final payout of some UTXOs.

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Mint $zkBTC Flow
Redeem $BTC Flow
Redeem $BTC upon OP_ZKP activation