Video: Sync Bitcoin Faster! Assume UTXO

Video: Sync Bitcoin Faster! Assume UTXO
фото показано с : bitcoinmagazine.com

2020-10-24 18:39



On this episode of The Van Wirdum Sjorsnado, Aaron and Sjors discuss “Assume UTXO,” a proposal and project by Chaincode Labs alumnus James O’Beirne.

One of the biggest, if not the biggest, bottlenecks for scaling Bitcoin is initial block download: the time it takes for a Bitcoin node to synchronize with the Bitcoin network, as it needs to process all historic transactions and blocks in order to construct the latest UTXO-set: the current state of bitcoin-ownership.

Aaron and Sjors explain some of the ways sync-time has been sped up over time. First, sync-time was improved through “Headers First” synchronization, which ensures that new Bitcoin nodes don’t waste time validating (potentially) weaker blockchains. In recent years, sync-time has been improved with “Assume Valid,” an optional shortcut that lets nodes skip signature verification of older transactions, instead trusting that the Bitcoin Core development process in combination with the resource-expensive nature of mining offers a reliable version of transaction history.

Finally, they explain how the security assumptions underpinning Assume Valid could be extended to allow for the potential future upgrade Assume UTXO to offer new Bitcoin Core users a speedy solution to get up to speed with the Bitcoin network, sacrificing a minimal amount of security during the initial bootstrapping phase.

Helpful links for following along wit the episode: 

Chaincode podcast about the same topicPull request

Listen to the podcast on these platforms:

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The post Video: Sync Bitcoin Faster! Assume UTXO appeared first on Bitcoin Magazine.

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bitcoin assume utxo video faster sync network

Источник: bitcoinmagazine.com

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