A tie-breaking rule is a predefined protocol or algorithm used in blockchain consensus mechanisms to resolve situations where multiple valid blocks are proposed simultaneously. This rule determines which block is accepted by the network, ensuring a single, consistent ledger state. It is essential for maintaining chain integrity and preventing forks.
Context
Tie-breaking rules are fundamental to the operational stability of decentralized networks, particularly in Proof-of-Work and Proof-of-Stake systems where multiple participants might produce valid blocks concurrently. The efficiency and fairness of these rules are often debated in discussions about protocol design and network security. Any ambiguity in a tie-breaking rule could lead to consensus issues or network instability.
A novel DAG-based ledger function discards block content during tie-breaks, fundamentally removing the MEV incentive that destabilizes consensus protocols.
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