About RSID

Overview

RSID provides standardised 7-character identifiers for financial institutions needing operational reference for securities lacking SEDOL codes. Designed for custodian banks, asset managers, broker-dealers, and technology teams.

Operational Benefits

• Trade Settlement: Reference codes for settlement matching and reconciliation
• Custody Operations: Position reference and corporate actions processing
• Reconciliation: Cross-system reference data for operational controls
• Reporting: Standardised identifiers for internal reporting

Target Users

• Operations teams at custodian banks and broker-dealers
• Middle-office and reconciliation teams at asset managers
• Technology teams implementing custody and settlement systems

Service Model

Currently free for internal operational use by qualified financial institutions. Redistribution or commercial use requires a license.

Technical Overview

Weighted modulus-10 check digit reduces data entry errors. Stable codes across corporate actions. Full technical specification available via PDF download.

Download Technical Specification

Data Governance

RSID algorithm, identifiers, and datasets are exclusive IP of RSID Registry. Users receive a license to use data internally; no ownership transfer. Data provided "as-is"; users responsible for validation and reconciliation.

Contact / Support

General inquiries: info@rsidregistry.com

Technical questions / specifications: Download PDF