Tutorial: Anonymous Membership Proofs: Allowlists, Voter Rolls & Gated Access (Bounty #316)

[a918124259a]

Summary

This tutorial covers anonymous membership proofs using Merkle trees on Midnight. Includes:

• Membership contract with nullifier-based replay protection
• Anonymous voting system with double-vote prevention
• Off-chain membership manager with Merkle tree utilities
• Balance-gated membership verification
• Complete test suite

Closes #316

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}