Glossary

The operational discipline of maintaining a firm's golden copy — the single authoritative securities reference record kept current through daily vendor scrubbing, conflict resolution, and event-driven lifecycle enrichment.

Shared post-trade infrastructure that runs trade capture, enrichment, settlement, reconciliation, and compliance on a common primitive core — decoupling ops headcount from trade volume through platform-scale automation.

The end-to-end sequence from trade execution through clearing, affirmation, and DvP settlement — seven operational stages that must complete within the T+1 regulatory window.

Segregation of duties (SoD) is the internal control principle that no single operator can book, approve, and settle a transaction — enforced through conflict matrices, maker-checker workflows, and access certification reviews to satisfy SOX Section 404.

EU law making transfer orders in designated settlement systems legally final and irrevocable, protecting the financial system from participant insolvency contagion.

The point at which an on-chain transaction becomes irrevocable — a property of the consensus mechanism rather than a declaration by any central infrastructure operator.

The statutory guarantee that a completed securities settlement is irrevocable and immune to insolvency court reversal — a protection that depends on designated system status, a precisely logged entry timestamp, and multi-jurisdictional legal alignment.

The irrevocable transfer of legal ownership in a securities transaction — achieved through deterministic, conditional, or probabilistic finality depending on the settlement rail.

Automatically generating and transmitting settlement instructions to custodians and CSDs using pre-loaded SSI data — replacing manual entry, enabling STP, and making T+1 compliance operationally viable.