Tutorial: Building a Compliance Attestation System with Self-Sovereign Identity (Bounty #315)

[a918124259a]

Summary

This tutorial demonstrates building a compliance attestation system with self-sovereign identity on Midnight. Includes:

• Complete Compact contract for attestation management
• Off-chain identity provider service in TypeScript
• Merkle tree-based proof verification
• Attestation revocation mechanism
• Real-world use cases (Regulated DeFi, Tokenized Securities)

Closes #315

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