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@xmbl/state-machine

v0.1.17

Published

XMBL state — a Verkle state tree, app-centric diffs, sharding and assembly into current state.

Vulnerabilities

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Links

Git

Maintainers

34r7h34r7h

Keywords

Readme

@xmbl/state-machine

XMBL's state layer: a Verkle tree whose root moves as the chain applies transactions. A moving state root is health, not drift.

npm install @xmbl/state-machine

What it owns

| Export | What it is | |---|---| | VerkleStateTree | The tree. Proofs verify independently — verkle-independent-verify.test.mjs checks a proof against the root alone, with no access to the prover's tree. | | StateDiff | An app-centric diff: what a transaction changes, as a value. | | StateShard | Sharded state. | | StateAssembler | Assembles diffs into current state. | | StateMachine | The machine that applies diffs and emits state:committed when a cube commits a state root — the one moment the chain commits state must be observable outside this file. |

Rehydration

State survives a restart: rehydration.test.mjs and applied-count.test.mjs hold the count of applied diffs across a reopen, because a state machine that silently reapplies or silently skips is indistinguishable from a working one until the root diverges.

Tests

node ../../scripts/run-node-tests.mjs .