Grant Application
**GitHub Issue:** Grant Application: FROST Multi-Signature UI for Zcash Orchard · Issue #12 · ZcashCommunityGrants/arboretum-notes · GitHub
Project Overview
**Project:** FROST Multi-Signature UI for Zcash Orchard
**Budget:** $42,000 USD
**Timeline:** 12 weeks (Milestone 1 already complete)
**Developer:** Carson (lamb356)
**Repository:** GitHub - lamb356/frost-ui
What I Built
A production-ready web UI for FROST threshold signatures on Zcash Orchard transactions, fully integrated with frostd server.
**Already Delivered (M1 Complete):**
- Full frostd REST API integration (8 endpoints)
- XEdDSA authentication via Rust WASM
- E2E encryption (X25519 + AES-256-GCM)
- Zcash Orchard support (RedPallas, ZIP-312)
- 76+ tests proving cryptographic correctness
- Reproducible CI pipeline
Why This Matters
Zcash users currently have no production-ready way to perform threshold signatures for Orchard transactions. This enables:
- DAOs managing Zcash treasuries (3-of-5)
- Families with shared wallets (2-of-3)
- Businesses requiring multi-approval
Milestones
| Milestone | Duration | Status | Payment |
|---|---|---|---|
| M1: Core Implementation | Done |  Complete |
$18,000 |
| M2: User Testing | 5 weeks | Pending | $8,000 |
| M3: Documentation | 3 weeks | Pending | $6,000 |
| M4: Ecosystem Integration | 4 weeks | Pending | $10,000 |
Differentiation
| Aspect | Previous Attempts | This Project |
|---|---|---|
| Zcash Orchard | Not delivered | 34 tests passing |
| frostd integration | Incomplete | All 8 endpoints |
| Test coverage | Minimal | 76+ tests |
| Budget | $91,700 | $42,000 (54% less) |
Verify It Yourself
git clone https://github.com/lamb356/frost-ui.git cd frost-ui && npm install && npm test
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Full details in the [GitHub application](https://github.com/ZcashCommunityGrants/arboretum-notes/issues/12). Looking forward to community feedback!