August 2019
Intermediate to advanced
486 pages
13h 52m
English
Content preview from Mastering Blockchain Programming with Solidity
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Lightweight nodes
A light node does not maintain the full copy of the blockchain ledger. It verifies the transaction using a method called Simple Payment Verification (SPV). SPV allows a node to verify whether a transaction has been included in the blockchain or not. This is verified without the need to download the entire blockchain on a machine. A light node just downloads the header information of the blocks, hence lower storage space is required in running light nodes.