Project Overview
As part of our commitment to the blockchain ecosystem, we develop and maintain open source NPM packages that solve common challenges in ZK and blockchain development. These packages are used in production by our own projects and are available for the community.
Packages
1. Indexed Merkle Tree
Repository: github.com/jayanth-kumar-morem/indexed-merkle-tree
A TypeScript implementation of Indexed Merkle Trees, providing efficient key-value storage with cryptographic proofs of inclusion and non-inclusion.
Features:
- Insert, update, and delete operations with proof generation
- Non-membership proofs for key absence verification
- Configurable tree depth and hash functions
- Optimized for ZK circuit compatibility
Use Cases:
- State management in ZK rollups
- Efficient blockchain light clients
- Privacy-preserving data structures
- Membership verification systems
Indexed Merkle Trees enable efficient proofs of both inclusion AND non-inclusion, making them ideal for nullifier-based systems like voting and token transfers.
Installation:
npm install indexed-merkle-tree
2. SnarkJS to Solana
Repository: github.com/jayanth-kumar-morem/snarkjs-to-solana
A utility library that bridges SnarkJS proof generation with Solana's on-chain verification, enabling ZK proof verification in Solana programs.
Features:
- Convert SnarkJS proofs to Solana-compatible format
- Generate verification key constants for Solana programs
- Support for Groth16 proof system
- TypeScript and Rust code generation
The Problem: SnarkJS generates proofs in a format optimized for EVM verification. Solana uses a different field representation and proof format. Manual conversion is error-prone and time-consuming.
The Solution: Our library handles the conversion automatically:
import { convertProof, generateVerificationKey } from 'snarkjs-to-solana';
// Convert proof for Solana
const solanaProof = convertProof(snarkjsProof);
// Generate Rust verification key
const rustCode = generateVerificationKey(vkey);
Use Cases:
- ZK voting systems on Solana
- Private transactions
- Identity verification
- Cross-chain bridges with ZK verification
This package powers the ZK verification in both Cloak Minster Ballot and Meridian Link, demonstrating its production readiness.
Installation:
npm install snarkjs-to-solana
3. Sparse Merkle Tree
Repository: github.com/jayanth-kumar-morem/sparse-merkle-tree
A high-performance Sparse Merkle Tree implementation optimized for blockchain applications with support for various hash functions.
Features:
- Efficient storage for sparse data
- Multiple hash function support (Poseidon, SHA256, Keccak)
- Inclusion and non-inclusion proofs
- Batch operations for gas optimization
- Persistent storage backends
Why Sparse Merkle Trees?
Standard Merkle trees are inefficient for sparse data—most leaves are empty. Sparse Merkle Trees use a clever optimization:
| Tree Type | Empty Storage | Proof Size |
|---|---|---|
| Standard Merkle | O(2^n) | O(n) |
| Sparse Merkle | O(k) | O(n) |
Where n is tree depth and k is number of non-empty leaves.
Use Cases:
- Blockchain state commitments
- Nullifier tracking in privacy protocols
- Efficient set membership proofs
- Account balance trees
Installation:
npm install sparse-merkle-tree
Why We Build Open Source
Our open source work serves multiple purposes:
- Ecosystem Contribution: Give back to the community that supports blockchain development
- Quality Assurance: Public code undergoes community review and battle-testing
- Hiring Pipeline: Demonstrates our technical capabilities to potential clients and team members
- Internal Efficiency: Building reusable tools accelerates our own project development
Package Quality Standards
All our packages follow strict quality guidelines:
- 100% TypeScript: Full type safety and IDE support
- Comprehensive Tests: Unit and integration test coverage
- Documentation: README, API docs, and usage examples
- Semantic Versioning: Predictable version management
- Continuous Integration: Automated testing on every commit
- Security Audits: Regular dependency and code audits
Results & Impact
Our NPM packages represent our commitment to advancing blockchain infrastructure:
- Production Tested: Used in our own deployed applications
- Community Adoption: Downloaded and used by other developers
- Active Maintenance: Regular updates and bug fixes
- Responsive Support: GitHub issues addressed promptly
These packages demonstrate our deep understanding of cryptographic primitives and blockchain development patterns, making them a foundation for our client projects.
