Consensus and Security Protocols

📜 TL;DR:

• Incorporates Bitcoin's security to prevent attacks, with PoP Miners embedding consensus data on the Bitcoin blockchain.

• Rewards PoP Miners in native tokens for strengthening consensus.

• Utilizes Bitcoin confirmations to ensure network integrity, achieving "Bitcoin Finality" for robust defense against reorganizations.

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👀 Sneak Peek WIP

Overview

The Hemi Network's sequencer consensus combines Proof-of-Stake with Proof-of-Proof to address weak subjectivity and censorship attacks inherent in traditional PoS systems.

This hybrid model prevents forged chains through state proofs on the Bitcoin network and allows legitimate sequencers to regain control in adversarial conditions, ensuring the network's resilience and security.

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🔒 Network Security and Finality

• To inherit Bitcoin security, a new type of miner (a “PoP Miner”) publishes Hemi consensus information to the Bitcoin blockchain.

• After a state publication to Bitcoin, the Hemi Network’s consensus layer incorporates cryptographic proofs of these publications, with PoP Miners receiving a reward in the protocol’s native token. The network uses these proofs during fork resolution to prevent reorganizations with the full force of Bitcoin’s security.

• As they are produced, the Hemi Network’s chain segments initially receive Bitcoin confirmations, which means an attacker would have to control increasingly large ratios of staking power to successfully affect a reorganization.

• During normal operation, each block on the Hemi Network reaches full “Bitcoin Finality” after 90 minutes, or nine Bitcoin blocks, on average.

At this point, it is mathematically impossible for anyone to reorganize the network without 51% attacking Bitcoin itself.