CIP-0119: On-Chain Identity and Reputation Framework

Overview

CIP-0119 proposes an on-chain identity and reputation framework for Canton Network participants. Building on CIP-0061's KYC Bridge, CIP-0119 extends identity capabilities to include reputation scoring, credential management, and decentralized identifier (DID) integration. The framework enables Canton participants to build portable reputation based on their on-chain activity, governance participation, and verified credentials without revealing underlying personal data. CIP-0119 defines reputation attestation protocols, credential revocation mechanisms, and privacy-preserving reputation queries that enable applications to gate access based on reputation thresholds. The proposal also specifies how identity and reputation interact with Canton's existing privacy model.

Impact on Canton Network

On-chain reputation would enable Canton applications to implement trust-based access controls, credit scoring, and governance weighting without compromising participant privacy. This is critical for undercollateralized lending and institutional trust frameworks.

About Canton Network Governance

Canton Improvement Proposals (CIPs) are the formal mechanism for suggesting changes to the Canton Network protocol, standards, and ecosystem processes. Each CIP goes through a lifecycle from Draft to Proposed to Active or Implemented, with community review and validator consensus required for adoption.

The CIP process ensures that protocol changes are carefully considered, widely reviewed, and transparently documented. This governance framework is essential for maintaining Canton's position as the leading institutional blockchain, where predictability and stability are paramount.