CB Index (Settlement-Derived Rating)
A CB Index is a settlement-derived rating computed from evidence.
It is not a subjective score and not a claim about model intelligence.
Definition
A CB Index record summarizes a transaction’s clearing outcome using only verifiable inputs:
- Routing decision (
routing.jsonl) - Settlement receipt (
settlement.jsonl) - Seal record (
seal.jsonl, when enabled) - Reproducibility stamp (
repro.jsonl) - Archival status (
archive.jsonl, when enabled)
Minimal fields
- Identity:
request_id,settlement_id, optionaltenant_id,session_id,turn_index - Routing:
risk_profile,provider_tier,provider_id,selected_model_artifact_id,routing_reason_code - Settlement:
compliance_status(allow|transform|escalate|void),output_hash - Notarization:
signer_id,alg, seal presence - Reproducibility:
repro_stamp_sha256 - Archival:
status(uploaded|exists|upload_failed)
Intended use
- Compare operational integrity and compliance behavior across providers and tiers.
- Provide a deterministic, auditable input into risk controls and governance.
- Drive institutional reporting without inventing claims.