Public budget transparency, verified on Solana.

Built and validated in Indonesia's national hackathon. Ready for any institution that handles public money — including foreign aid.

The Problem

Wherever money flows through institutions — governments, NGOs, foundations, foreign aid agencies — accountability lags reality. Quarterly PDF reports are slow, easy to amend, and force donors and citizens to trust periodic summaries rather than verify actual spending. The trust gap is structural, not technical.

The Solution

OpenBudget records every spending milestone as an immutable transaction on the Solana blockchain. Citizens and donors verify the real transaction in real time, without trusting any single party. A hybrid architecture pairs the on-chain ledger (truth) with a fast PostgreSQL cache (browsing) — and the cache self-heals from chain state if they ever drift.

The Proof

• ✓ 2nd Place — Garuda Spark Hackathon (Oct 2025), 1,500 USDC prize
• ✓ Organized by Superteam Indonesia
• ✓ Endorsed by Indonesia's Ministry of Communication (Komdigi)
• ✓ Endorsed by Indonesia's Ministry of Creative Economy (Ekraf)
• ✓ Live, deployed system: openbudget.rectorspace.com
• ✓ Stack: Solana (Anchor) + Next.js 14 + PostgreSQL + Phantom/Solflare wallets

The Next Level

OpenBudget's architecture is institution-agnostic. The same trust primitive applies to national budgets, foundations, NGOs, religious institutions, and university grants. The most powerful immediate fit is foreign aid transparency: aid agencies sending billions across borders today rely on recipient-country quarterly reports. With OpenBudget, every dollar of aid becomes verifiable in real time, from agency to final ministry spending — a tamper-proof complement to existing accountability frameworks.