A trustless client is a software application that can verify the validity of blockchain data and transactions without relying on any external, centralized authority. These clients achieve security by directly verifying cryptographic proofs and network consensus rules. They permit users to interact with a blockchain in a highly secure and independent manner, minimizing the need for third-party trust. Light clients often strive for this.
Context
Discussions about trustless clients are common in technical blockchain news, particularly concerning decentralization and censorship resistance. The development of efficient trustless clients is crucial for expanding access to blockchain networks while maintaining security for individual users. Innovations in zero-knowledge proofs and similar cryptographic methods are key to making these clients more practical and widely available.
A new Decoupled Vector Commitment primitive fundamentally lowers client verification cost from linear to sublinear time, enabling true stateless decentralization.
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