PoolFi Litepaper

1. Executive Summary

2. The Problem

3. Why Traditional ROSCA Systems Matter

ROSCA systems have existed for centuries across cultures worldwide. These informal savings groups serve millions of people who lack access to traditional banking or prefer community-based financial coordination. The systems are known by many names:

These systems coordinate billions of dollars annually, demonstrating the massive demand for community savings coordination. However, they remain largely offline and dependent on trust.

4. Why ROSCA Does Not Scale

• 1Physical coordination limits pool sizes and geographic reach
• 2Cash handling creates security risks and friction
• 3No default protection beyond social pressure
• 4Limited reputation portability across groups
• 5Organizer burden for tracking and enforcement
• 6No transparency for external observers

5. Introducing PoolFi Protocol

PoolFi brings ROSCA systems on-chain, preserving the social benefits while eliminating the trust requirements and operational friction. The protocol provides:

6. How PoolFi Works

7. Supported Assets

8. Pool Types

9. Collateral Protection Model

PoolFi requires participants to lock collateral as a protection mechanism against defaults. The collateral model is designed to:

• Align participant incentives with pool success
• Provide compensation in case of defaults
• Scale with contribution amounts and pool risk profiles
• Be returned upon successful pool completion

10. Default Handling

In the event of a missed contribution, the protocol has a structured default handling process:

11. Reputation System

PoolFi features a portable on-chain reputation system that tracks participant behavior across all pools:

12. Queue Priority System

Payout queue positions are determined by a combination of factors to ensure fairness while incentivizing good behavior:

• • Base position: First-come, first-served for initial queue entry
• • Reputation weight: Higher reputation can improve position
• • Early participation: Early pool joiners may receive priority
• • Previous pool history: Veterans of completed pools get preference

13. Fee Structure Overview

PoolFi implements a 5% fee on payouts that aligns incentives across all participants in the ecosystem. This fee structure mirrors how successful ROSCAs operate in the real world—where community leaders and introducers play essential roles in maintaining healthy pools.

Unlike purely collateral-based systems, this fee structure creates social accountability by rewarding the human relationships and community leadership that make ROSCAs successful.

14. Protocol Development Fund

1% of each payout is allocated to protocol development. This fund supports:

• • Ongoing protocol development and feature enhancements
• • Security audits and code reviews
• • Infrastructure costs and maintenance
• • Developer grants and bug bounties
• • Documentation and community resources

15. Security Reserve

2% of each payout is allocated to a Security Reserve—a protocol-wide protection fund designed to absorb unexpected losses, defaults, and edge cases. This reserve:

• • Provides an additional layer of protection beyond individual collateral
• • Covers edge cases and smart contract vulnerabilities
• • Ensures ecosystem resilience during market stress
• • Can be used for emergency interventions if needed

16. The Introducer Role

The Introducer is a key role in the PoolFi ecosystem, receiving 1% of payouts from participants they bring into the protocol. This role replicates how successful ROSCAs operate in the real world—most people join because someone they trust invited them.

Why This Matters: Introducers have a financial incentive to bring in trustworthy participants rather than simply maximizing signups. This creates a network of accountability where people are introduced by friends, family members, colleagues, or community leaders who vouch for their reliability.

The Introducer model transforms PoolFi from a purely technical solution into a reputation-driven community finance network that scales through trusted relationships.

17. The Pool Creator Role

The Pool Creator (or Pool Leader) receives 1% of payouts from the pools they create. This role is essential for maintaining healthy pools and ensuring participant success.

Aligned Incentives: Because Pool Creators earn from successful pool completions, they are incentivized to:

• • Recruit reliable participants who will complete the full cycle
• • Set realistic contribution amounts that participants can sustain
• • Provide ongoing support to reduce default rates
• • Build a reputation as a trusted community leader

This mirrors traditional ROSCA organizers who take responsibility for bringing the group together and ensuring its success. The Pool Creator fee rewards this essential human coordination work.

18. Why Solana

PoolFi is built on Solana for several key reasons:

19. Market Opportunity

Millions of people worldwide participate in informal savings groups known by different names such as kutu, arisan, susu, hui, tanda, and ROSCA. These systems coordinate billions of dollars annually but remain largely offline and trust-based.

PoolFi addresses this massive market by bringing these coordination mechanisms on-chain, adding transparency, security, and global accessibility while preserving the community dynamics that make these systems effective.

20. Roadmap

21. Long-Term Vision

PoolFi aims to become the standard infrastructure for decentralized savings coordination, enabling communities worldwide to access transparent, secure, and efficient savings pools. We envision a future where:

• • Community savings are coordinated transparently on-chain
• • Portable reputation unlocks financial opportunities across protocols
• • Global communities can save together regardless of geography
• • Trust-minimized coordination replaces informal cash-based systems

22. Disclaimer