Finality is the assurance or guarantee that transactions cannot be altered, reversed, or canceled after they are broadcasted.
Businesses need to know exactly when a transaction is final and canβt be reversed.
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Traditional PoW requires waiting for multiple block confirmations before a transaction can be considered final.
With Avalanche Post-Consensus live on the eCash network, businesses (including exchanges) can then reduce their deposit confirmation requirement to 1.
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This means that the time it takes for an exchange to credit a deposit will drop from an average of ~3.5 hours to just 10 minutes. π
This is a 95% reduction in the time required. Or put another way, 21x faster. β‘οΈ
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Avalanche Post-Consensus provides certainty that transactions with 1 confirmation are final, allowing businesses to credit payments much faster (and with confidence). π€
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2β£ 51% Attack Prevention πΊπ‘οΈ
The upshot is that eCash will have leapfrogged Bitcoin's security model by becoming immune to attackers' attempts to cause network disruptions via 51% attack as valid blocks can no longer be orphaned.
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51% attacks have been a worry for Bitcoin since the very beginning, which makes this a big deal. π
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Once Avalanche Post-Consensus is live, eCash nodes will be able to connect to the network, find peers, & participate in Avalanche Post-Consensus - all in a permissionless decentralized manner. π
This milestone will mark the first public release of Avalanche on eCash. π₯π
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Beyond this, Avalanche (with PoS) will continue to improve to include the following key features: