How Does a 2/3 Majority PoS Signature Threshold Affect PoA Finality?
A 2/3 majority signature threshold in the PoS phase of PoA provides a high degree of finality. Once 2/3 of the total staked coins (or the validators representing them) have signed the block, the block is considered finalized and immutable under the protocol's rules.
This cryptographic commitment makes chain reorgs extremely difficult, as it would require 2/3 of the stake to collude and risk being slashed.
Glossar
PoS Finality
Attestation ⎊ Proof-of-Stake (PoS) finality represents the point at which a blockchain transaction is considered irreversible, secured by cryptographic consensus mechanisms and economic incentives.
Byzantine Fault Tolerance
Fault Tolerance ⎊ Byzantine Fault Tolerance describes the network characteristic ensuring that a distributed system, like a blockchain, can continue to reach consensus and maintain a correct state even when a certain fraction of its nodes behave maliciously or fail unpredictably.
Signature Threshold
Authorization ⎊ Signature threshold defines the minimum number of digital signatures required to authorize a transaction from a multi-signature wallet or smart contract.
Cryptographic Commitment
Mechanism ⎊ A cryptographic commitment, within decentralized finance, establishes a state verifiable on-chain without revealing the committed value, crucial for applications like atomic swaps and zero-knowledge proofs.
Threshold
Barrier ⎊ A threshold, within cryptocurrency derivatives and options trading, fundamentally represents a price level that must be breached for a contract to become active or trigger a specific outcome.
Majority
Consensus ⎊ Majority, within decentralized systems, denotes the agreement threshold required to validate transactions or state changes on a blockchain, influencing network security and operational efficiency.