Meaning
Numerical index representing a specific chronological point in a distributed ledger sequence. A block evaluation height specifies which point in the chain history is used to calculate current balances or execute contract logic. It governs the set of available data for any given request and stops applying when the network moves to a subsequent integer in the sequence.
Verification Logic
Determinism requires that every node in a network reaches an identical conclusion when processing the same inputs. By referencing a block evaluation height, a system ensures that the state used for a transaction does not change while the calculation is in progress. This fixed reference point prevents errors that occur when new data arrives mid-computation.
Historical Anchor
Chronological records often lose precision when they rely on timestamps from different machines. An evaluation height provides a more reliable anchor because it represents a consensus-driven order rather than a local clock. Records indexed this way remain verifiable years after the event, as the entire chain of preceding transactions supports the validity of that specific height.
The capacity cost of maintaining this index is the storage required to keep a full history of state changes.
Constraint Boundary
Finality determines how far back an index remains useful for a settled claim. If a chain undergoes a reorganization, a previously stable block evaluation height might point to a state that no longer exists in the main branch.