Event sourcing stores an append-only sequence of domain events and derives current state by replay. It improves auditability but requires event versioning, snapshots, and privacy-aware correction strategies.

Event Sourcing Rebuilds State From Accepted Events

Consensus protocols let non-faulty replicas agree on an ordered log despite some failures. They solve replicated state agreement, not truth, fairness, or model hallucination.

Distributed Consensus Orders Shared Decisions

In this situation—reconstructing how a course plan changed after learner feedback—which choice best applies “Event Sourcing Rebuilds State From Accepted Events”?

A saga sequences distributed transactions and defines compensations when later steps fail. Compensation is a new domain action and may not perfectly erase the original effect.

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