Скачать или смотреть Hook State Concept: Xahau Network

Hooks can read and save small pieces of on-ledger data.

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State in computer science describes information held by a system between executions. For example, your browser leaves you logged in to a website even after you close and reopen it. The login cookie is held in the browser's state.

Hook State refers to a key-value mapping that logically exists for each account on the XRP Ledger whether or not any keys are currently present. The keys are always 32 bytes (unsigned 256 bit integer) and the values are variable length with a maximum size determined by validator voting, at time of writing 256 bytes.