A proof of inclusion is a cryptographic proof demonstrating that a specific data element, such as a transaction or a document, is present within a larger data set, typically a block or a Merkle tree. This proof allows for verification without needing to examine the entire data set. It is a fundamental component for light clients and scaling solutions to confirm data integrity efficiently. This mechanism ensures that a particular piece of information has been recorded on the blockchain.
Context
In blockchain and digital asset news, proof of inclusion is often discussed in the context of light client verification and the security of layer-2 scaling solutions like rollups. These proofs enable users with limited resources to confirm that their transactions are part of a valid block without running a full node. Advancements in generating and verifying these proofs are critical for improving the scalability and accessibility of decentralized networks.
This new Vector Commitment primitive achieves O(1) data availability proof verification, fundamentally decoupling light client security from network throughput limits.
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