# Development Requirements

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### DEV-00001: Signature Implementation

**Level**: DEV | **Implements**: PRD-00001 | **Status**: Active

Implement electronic signature capture and verification.

**Acceptance Criteria**:
- Digital signature using RSA-2048
- Timestamp from trusted source
- Signature verification API

*End* *Signature Implementation* | **Hash**: ghi11111
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### DEV-00002: Audit Logger

**Level**: DEV | **Implements**: PRD-00002 | **Status**: Active

Implement comprehensive audit logging system.

**Acceptance Criteria**:
- Event sourcing pattern
- Hash chain for tamper evidence
- Query interface for regulators

*End* *Audit Logger* | **Hash**: jkl22222
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