Comprendre les blockchains

Light-client verification

A light client checks compact consensus evidence rather than one remote balance.

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Overview

A light client checks compact consensus evidence rather than one remote balance.

Security depends on the verified header chain and consensus assumptions.

Verify checkpoints and update rules.

Types d’arnaques

A form claims recovery words must be validated, synchronised or upgraded.

Histoire crypto

In February 2022 an attacker bypassed Wormhole verification and minted unbacked wrapped ETH on Solana.

Comprendre les blockchains

Signing, broadcasting, inclusion and finality are distinct events.

Comprendre les blockchains

Inputs consume earlier outputs; new outputs define who can spend the resulting amounts.