# Coverage Ledger

> Record each surface's verdict in a durable coverage ledger together with the residual uncovered and unknown set, so coverage state is reusable evidence rather than a fact re-derived on every run.

Record: `algorithms:coverage-ledger`
Kind: algorithm
Canonical: https://banes-lab.com/ontology/algorithms#algorithms-coverage-ledger
Closure: https://banes-lab.com/json/records/algorithms/coverage-ledger/closure

Listed in [Algorithm contracts](https://banes-lab.com/api/records/algorithms.md), after [Evidence Verdict](https://banes-lab.com/records/algorithms/evidence-verdict.md) and before [Coverage Completion](https://banes-lab.com/records/algorithms/coverage-completion.md).

## Domain

- [Test coverage](https://banes-lab.com/records/algorithms-domain/test-coverage.md)

## Stage

- [commit](https://banes-lab.com/records/stage/commit.md)

## Axis

- [representation](https://banes-lab.com/records/reasoning/axis-representation.md)

## Tier

- [process](https://banes-lab.com/records/vocabulary/domain-tier-process.md)

## Composed by

- [Test Coverage Kernel](https://banes-lab.com/records/algorithms/test-coverage-kernel.md)

## Named in the derivation of

- [Test Coverage Kernel](https://banes-lab.com/records/algorithms/test-coverage-kernel.md)

## Math type

- [Information Theory](https://banes-lab.com/records/reasoning/math-type-information-theory.md)

## Force

- [Architecture evolution](https://banes-lab.com/records/force/architecture-evolution.md)
- [Correctness verification](https://banes-lab.com/records/force/correctness-verification.md)

## Linked from

- [Test coverage](https://banes-lab.com/ontology/algorithms/algorithms-domain-test-coverage.md)
- [The derivation loop](https://banes-lab.com/ontology/reasoning/reasoning-loop-derivation-loop.md)
- [The axes](https://banes-lab.com/ontology/reasoning/the-axes.md)
- [The mathematics](https://banes-lab.com/ontology/reasoning/the-mathematics.md)
- [Domain tiers](https://banes-lab.com/ontology/schema/the-vocabulary-domain-tier.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)