Bitcoin White Paper: 7. Reclaiming Disk Space

Written by BitcoinWhitePaper | Published 2019/07/14
Tech Story Tags: bitcoin-white-paper | reclaiming-disk-space | bitcoin-reclaiming-disk-space | bitcoin | merkle-tree | bitcoin-merkle-tree | bitcoin-disk-space | bitcoin-memory-storage

TLDR Once the latest transaction in a coin is buried under enough blocks, the spent transactions before it can be discarded to save disk space. To facilitate this without breaking the block's hash,transactions are hashed in a Merkle Tree [7], with only the root included in the hash. Old blocks can then be compacted by stubbing off branches of the tree. A block header with no transactions would be about 80 bytes. Moore's Law predicts current growth of 1.2GB per year.via the TL;DR App
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Written by BitcoinWhitePaper | A Peer-to-Peer Electronic Cash System
Published by HackerNoon on 2019/07/14
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