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Does pruning reveal anything private such as one’s UTXOs?

Bitcoin Stack Exchange

Bitcoin News / Bitcoin Stack Exchange 120 Views

No. The privacy benefit is not because there is a local copy of the full blockchain but rather because full nodes receive and verify all blocks and transactions. This allows full nodes to determine what transactions belong to any wallets it is managing without having to ask anyone else for those transactions specifically. They receive everything, and so can filter what is needed from there. Whether that data is stored does not matter. The relevant transactions are stored in their respective wallets.

Pruning just affects how blocks are stored on disk. It is a node operation detail and not related to the wallet. Nodes with pruning enabled still receive and verify all blocks and transactions, and so any wallets being managed by the node will learn of their transactions. Blocks are still written to the disk - they just end up getting deleted eventually rather than staying permanently.


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