📄 Proof of Concept (PoC): Jeddah Decentralized Impact Ledger

Initiative: Jeddah Tech Volunteers (The “Living API”)
Strategic Partner: Ma’amni Innovation Incubator

1. Executive Summary
   This PoC aims to bridge the gap between physical community assets (Spaces) and digital trust (Blockchain). By acting as a Human-Technical API, the Jeddah Tech Volunteers will facilitate the recording of social and innovative impact on an Ethereum Layer 2 (L2), creating a permanent, transparent “Impact Ledger” for the city of Jeddah.
2. The Problem Statement
   Community contributions—from space owners to technical volunteers—are currently fragmented and lack a unified verification system. Traditional “paper-based” reporting is slow, prone to bias, and difficult for incubators like Ma’amni to verify when allocating resources or funding.
3. The Proposed Solution (The “API” Model)
   We propose a three-tier architecture that mirrors the Retroactive Public Goods Funding (RetroPGF) model:

• The Physical Layer: Local space owners provide the infrastructure for innovation.
• The Connectivity Layer (Our Team): We function as the API, capturing data from these spaces and translating it into verifiable on-chain events.
• The Ledger Layer: Using Ethereum Layer 2, we issue “Impact Cards” (Digital Assets) that prove who did what, where, and the quality of the result.

1. Technical Architecture
   Component Technology Role
   Network Ethereum Layer 2 (Optimism/Arbitrum) High speed, near-zero gas fees for recording impact.
   Data Protocol Hypercerts / Attestation Service Creating unique “Impact Slices” for each activity.
   Storage IPFS / Filecoin Storing photos, videos, and proof of work decentrally.
   Interface Impact Dashboard A public visual map of Jeddah’s innovation footprint. The “Golden Scenario” (Trial Run)
   • Activation: A space owner hosts a 3-day coding bootcamp supported by Ma’amni.
   • API Integration: Jeddah Tech Volunteers automate the check-in and milestone tracking.
   • On-chain Minting: Upon completion, a digital Impact Card is minted on the L2. It is signed by the Space, the Team, and the Incubator.
   • Retro-Reward: Ma’amni uses this ledger to provide future grants or perks to the space owner based on the proven impact, not just the promise of it.
   1. Key Performance Indicators (KPIs)
   • Verifiability: 100% of recorded activities must be independently verifiable on a block explorer.
   • Efficiency: Reduce the “Impact-to-Ledger” time from weeks (reports) to seconds (on-chain).
   • Scalability: The ability to onboard 5 new physical spaces in the first 3 months.
     💡 Why This Matters (The Value Prop)
     By building this Decentralized Impact Ledger, Jeddah becomes a global pioneer in “Phygital” (Physical + Digital) governance. We aren’t just volunteering; we are building the trust infrastructure for the future of the Saudi innovation ecosystem.