GreenSnap: Rewarding Green Actions with Cardano Blockchain

[Proposal setup] Proposal title

Please provide your proposal title

GreenSnap: Rewarding Green Actions with Cardano Blockchain

[Proposal Summary] Budget Information

Enter the amount of funding you are requesting in ADA

54500

[Proposal Summary] Time

Please specify how many months you expect your project to last

6

[Proposal Summary] Translation Information

Please indicate if your proposal has been auto-translated

No

Original Language

en

[Proposal Summary] Problem Statement

What is the problem you want to solve?

Hundreds of millions of tons of plastic enter the environment each year. Changing behavior is urgent but difficult, as many lack recognition, motivation, and incentives for sustainable action.

[Proposal Summary] Supporting Documentation

Supporting links

• https://docs.greensnap.info
,
• https://www.youtube.com/watch?v=WxWFb9PbEuE

[Proposal Summary] Project Dependencies

Does your project have any dependencies on other organizations, technical or otherwise?

No

Describe any dependencies or write 'No dependencies'

No dependencies

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

License and Additional Information

Our project is dedicated to full transparency and active collaboration with the community. We are committed to open-source development to foster innovation and trust within the ecosystem.

License Details: We have chosen the MIT License for all components of our project. This permissive license allows others to freely use, modify, and redistribute our software, including for commercial purposes. It supports open innovation while preserving the original copyright.

[Theme Selection] Theme

Please choose the most relevant theme and tag related to the outcomes of your proposal.

Connected Community

[Campaign Category] Category Questions

Describe what makes your idea innovative compared to what has been previously funded (whether by you or others).

GreenSnap is not just a dApp, but a foundational "Proof-of-Action" layer for sustainability projects on Cardano. By leveraging the eUTXO model and standards like CIP-0068, we can efficiently and cost-effectively mint NFTs that verify green actions. This solution unlocks the ability for other developers to easily integrate GreenSnap’s API, adding green action rewards to their own applications and fostering an ecosystem of environmentally-conscious dApps.

Describe what your prototype or MVP will demonstrate, and where it can be accessed.

Logic Flow: A user logs an action (off-chain), which is verified by a partner. Upon reaching a milestone, a smart contract (on-chain) mints a reward NFT. Technical Evidence: We will deliver open-source code on GitHub, detailed API documentation, and test reports. Scope: We will focus on building the core logic for action-logging and NFT rewards. Complex features like a Plastic Credit Market will be developed in a later phase to ensure feasible delivery.

Describe realistic measures of success, ideally with on-chain metrics.

On-Chain Metrics: The number of "Proof-of-Action" NFTs minted, the total number of green actions recorded on-chain, and the number of unique wallets interacting with the dApp. SMART Goal (6 months): Achieve at least 2,000 verified green actions and 200 active on-chain users post-mainnet launch. Technical Quality Metrics: We will publish a third-party smart contract audit report and provide complete technical documentation for the community.

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

In Vietnam, plastic waste has become an urgent environmental challenge. Although awareness of sustainability is growing, there are still no clear mechanisms to recognize, reward, and sustain green behaviors. Individuals and organizations want to contribute but often don’t know where to start, while environmental initiatives lack long-term resources. One haunting image illustrates this crisis: a sea turtle with a deformed shell, trapped by a piece of hard plastic since it was young. That tiny strip of plastic not only destroyed a life but will remain in the environment for centuries, long after the turtle is gone.

GreenSnap was born with the goal of recognizing and rewarding people's green living behaviors and reducing single-use plastic waste through a reward point system and NFTs recorded on Cardano. The project encourages behavioral change, promotes sustainable lifestyles and easy-to-understand, familiar Web3 applications for Vietnamese people, designed around three core activities:

• Recognizing & Incentivizing Green Actions:

Users are encouraged to take eco-friendly actions such as refusing plastic bags, bringing personal cups, sorting waste at the source, or joining beach clean-ups.

Each action can be easily recorded through the GreenSnap app, where users earn points that can be redeemed for NFTs or rewards from reasonable businesses.

All points and rewards are transparently stored on the Cardano blockchain, ensuring trust, accountability, and long-term value for every green action.

• Mobilizing Resources for Environmental Projects:

Individuals, community groups, or organizations can launch environmental campaigns on GreenSnap, for example: bottle-for-tree exchanges, canal clean-ups, or plastic-reduction education programs.

Resources for these campaigns can be raised from the community, businesses, or dedicated funding organizations.

The allocation of funds and validation of campaign outcomes are transparent and verifiable, giving supporters confidence that their contributions make a real impact.

• Connecting Businesses with Environmental Responsibility:

Businesses can participate through the GreenSnap Impact Membership, offering multiple tiers of sponsorship that provide consistent financial support for plastic collection and reduction initiatives.

In return, they gain access to a real-time impact dashboard, displaying metrics such as the amount of plastic recovered, the number of green actions recorded, and the reduction in carbon emissions.

Funds are distributed transparently to support waste collectors, community groups, and highly active individuals, ensuring fair compensation and sustainable operations.

Every contribution, activity, and outcome is verified on the Cardano blockchain, reinforcing corporate credibility and strengthening customer trust.

Here is the GreenSnap logic flow: Green Actions – Points – NFT Rewards:

1- Input: User Green Actions

Users perform environmentally friendly activities, which are recorded through the app. Each action earns GreenPoints based on its impact.

Recognition methods include:

• QR code scan
• Photo upload (with timestamp/GPS if required)
• In-app check-in at events or campaigns

2- Points & User Levels

GreenPoints accumulate over time. Users advance through levels, unlocking additional benefits.

3- Data Recording (On-chain + Off-chain)

Off-chain: Action data stored in the app server (photos, event logs).

On-chain (Cardano):

• When a user reaches a milestone, an NFT is minted as a certificate (e.g., “GreenSnap – Hero of Reuse”).
• NFTs include metadata for transparency and verifiability

4- Rewards & Benefits

Users can:

• Keep NFTs as digital recognition badges.
• Redeem NFTs for tangible rewards (e.g., vouchers, partner offers).
• Auction or trade special edition NFTs in community fundraising campaigns.

5- Community & Engagement

• Each user has a referral code to invite others. Both referrer and referee earn bonus points after the first action.
• Green Leaderboard highlights top contributors monthly.
• Collective challenges and campaigns foster collaboration across individuals, communities, and businesses.

Summary Cycle

1. User performs a green action
2. System records and assigns GreenPoints
3. Milestone reached → NFT minted on Cardano
4. NFT = badge of honor + redeemable rewards
5. Referral + leaderboard → stronger ecosystem growth

Real-World Application Scenarios

To demonstrate how GreenSnap can create tangible impact, below are two practical models of collaboration. These examples illustrate how blockchain-backed recognition of green actions can seamlessly integrate into everyday life, delivering value both to individuals and organizations.

Partnership Model with Coffee Shops

Objective: Encourage customers to bring their own cups, reuse bags, or dispose of trash properly.

Implementation:

• QR Code at Checkout or Recycling Area:

A GreenSnap QR code is placed near the cashier or recycling bin. When a customer performs a green action (e.g., using a personal cup, sorting waste, refusing a plastic straw), the staff confirms it and the customer scans the QR code to log points.

• POS System Integration:

GreenSnap can be linked with the café’s point-of-sale (POS) system. During checkout, if the customer selects a “green action,” the POS system sends the transaction to GreenSnap’s blockchain system for transparent recording.

• NFT Rewards:

After accumulating enough points, customers earn a “Green Coffee Hero” NFT — a digital proof of their sustainable habit. This NFT can then be redeemed for discounts, free drinks, or other partner rewards.

Partnership Model with Schools & Universities

Objective: To build environmental awareness among students and at the same time record transparent data.

Implementation:

• Recycling Events (Plastic, Batteries, Waste Collection):

Whenever students submit recyclable items (e.g., used batteries, plastic bottles), school staff use the GreenSnap app to scan a code or enter the quantity. Each student has a GreenSnap ID (linked to their blockchain wallet), ensuring data is securely and transparently recorded.

• Points & Leaderboards:

Green points are displayed publicly on the school’s leaderboard, ensuring fairness and transparency since the data is stored on-chain. Competitions such as “The Greenest Class” can be held monthly or by semester to foster engagement.

• NFT Certifications:

Upon reaching a milestone (e.g., 100 green actions), students receive a “Green Student” NFT a digital certificate of recognition. These NFTs can be redeemed for small scholarships, gifts, or even bonus academic credits depending on school policy.

These examples show how GreenSnap bridges behavioral incentives and blockchain transparency in practical settings. Whether it’s a coffee shop encouraging daily sustainable habits, or a school cultivating long-term environmental responsibility, the solution creates a trusted, gamified system that rewards real impact.

[Your Project and Solution] Impact

Please define the positive impact your project will have on the wider Cardano community

Impact on the Cardano Community:

• Expanding Real-World Use Cases for Cardano

Beyond payments and DeFi, GreenSnap leverages the Cardano blockchain to record and validate sustainable actions, turning every eco-friendly behavior into immutable, transparent, and verifiable data. This highlights Cardano’s unique potential as a Proof-of-Action platform.

• Building an Environmental Utility Layer on Cardano

GreenSnap envisions becoming a dedicated sustainability layer within the Cardano ecosystem, where eco focused tools and services can interconnect. Through open APIs, any dApp, whether in commerce, social networks, or gaming can embed green action recognition as a native feature. Imagine: a ride-sharing app rewarding passengers who opt for carpooling, or an online marketplace offering eco points for customers who choose recyclable packaging. By weaving environmental incentives into diverse applications, Cardano evolves into a blockchain that not only powers finance, but also drives sustainable lifestyles at scale.

• Driving a Plastic Credit Market on Cardano

GreenSnap plans to issue Plastic Credits as native tokens, enabling businesses and individuals to buy, trade, or store them to offset their environmental impact. This not only provides additional liquidity within the ecosystem but also positions Cardano within the global green finance movement.

• Onboarding New Users & Diversifying the Cardano Community

GreenSnap engages users outside the crypto space, especially those passionate about sustainability. Through the experience of “act green – earn rewards – redeem benefits,” these users are naturally introduced to Cardano, expanding the community and strengthening Cardano’s brand story in global media.

• Scalable Model for Global Replication

Starting in Vietnam, the model can expand to Southeast Asia and other plastic-challenged regions, bringing new users, developers, and partnerships into Cardano across multiple geographies. Each expansion increases Cardano’s global presence and showcases its role in solving worldwide sustainability issues.

• Showcasing Cardano’s Strength in Transparency & Trust

Every green action, reward, and campaign outcome is recorded on Cardano, proving the chain’s capability as a trust layer for accountability. This strengthens Cardano’s reputation as the blockchain for verifiable impact and anti greenwashing solutions.

Impact Measurement:

We will measure the impact of the project using the following key metrics:

• Number of Green Actions Recorded

Total eco-friendly actions (e.g., reluctant plastic bags, using reusable cups, waste sorting) verified through the GreenSnap app and stored on Cardano.

• NFTs Minted & Distributed as Proof-of-Action

Tracking how many NFTs are created and delivered to users as digital certificates of their sustainable behaviors.

• Active Users & Retention Rate

Growth of user base interacting with Cardano through GreenSnap and percentage of users continuously engaging over time.

• Business Participation & Sponsorship Value

Number of businesses joining the Impact Membership program and the total amount of funds committed to sustainability campaigns via Cardano.

• Funds Raised & Allocated Transparently On-Chain

Value of ADA and stablecoins donated to environmental campaigns, along with verifiable distribution records on the blockchain.

• Verified Campaign Outcomes

Number and scale of community-led campaigns (e.g., clean-ups, plastic for tree exchanges...) successfully funded and validated on Cardano.

• Community Growth within Cardano Ecosystem

Increase in local Cardano wallets created through GreenSnap, NFT ownership distribution, and new developer/partner contributing to the ecosystem.

• Carbon & Plastic Reduction Metrics

Estimated CO₂ emission reductions and total kilograms/tons of plastic prevented or collected, linked with on-chain records for transparency.

[Your Project and Solution] Capabilities & Feasibility

What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?

Our team combines proven leadership, deep technical expertise, and strong community engagement, making us well-positioned to deliver this project with high levels of trust and accountability.

Capability to Deliver:

Experienced Leadership: The project lead, Duc Le, has over 10 years of business management experience and 7+ years in blockchain/crypto, with a strong record of building scalable ventures and engaging communities.

Technical Expertise: Our CTO, Mai Trong Hieu, brings 10+ years in software engineering, Fintech, and blockchain, ensuring the system architecture, smart contracts, and security are developed to the highest standards.

Community Impact: Community Manager, Nguyen Luong Ngoc, founder of Saigon Xanh, has demonstrated capacity to mobilize large-scale grassroots engagement (3,000 tons of waste collected, millions of social media followers), ensuring strong adoption and visibility.

Trust & Accountability Processes:

• Transparent Reporting: We will provide milestone-based progress updates, highlighting achievements, challenges, and next steps. Each report will include specific goals accomplished, evidence, and a visual summary via a public dashboard. This ensures the Catalyst community can easily track progress, verify results, and hold us accountable at every stage of the project.
• Fund Management: All funds will be managed with strict allocation according to the proposed budget. Expenses will be documented, and financial reports will be published at each phase.
• Auditing & Validation: Smart contracts and technical outputs will undergo code reviews and third-party audits. Community pilots will validate usability and all impact metrics will be recorded for public verification.

Feasibility of Approach:

Our step-by-step roadmap (design, MVP, pilot, mainnet launch) ensures milestones with measurable outputs. Early prototypes and testnet deployments will validate assumptions, while community pilots provide real-world feedback before scaling. This structured, evidence-based approach minimizes risks and strengthens considerations.

With a combination of business acumen, technical capacity, community credibility, and transparent governance, our team has both the capability and accountability to ensure successful delivery of the project.

[Milestones] Project Milestones

Milestone Title

Prepare and design a prototype solution

Milestone Outputs

• Comprehensive system architecture & tokenomics documentation detailing smart contract logic, eco-point issuance rules, and conversion into Cardano-based tokens.
• Defined list of green actions to be recorded, including measurable criteria and blockchain verification methods.
• UI/UX prototype (wireframes, user flow, branding assets) illustrating the full GreenSnap user journey and brand identity.

Acceptance Criteria

• Tokenomics & system architecture reviewed and approved by project team, ensuring technical feasibility and sustainability.
• Prototype app/web demonstrated internally with consistent navigation flow and design alignment.
• Finalized catalog of eco-actions validated against measurable and transparent verification standards.

Evidence of Completion

• Published architecture & tokenomics documentation stored in project repository.
• Screenshots and/or demo video of the UI/UX prototype demonstrating user flow.
• Documented eco-actions list with associated verification rules available for Catalyst reviewers.

Delivery Month

1

Cost

10000

Progress

20 %

Milestone Title

MVP Development

Milestone Outputs

• Smart contracts developed and deployed on Cardano testnet to record eco-actions and issue reward tokens.
• Integration with key Cardano wallets (Nami, Lace, Eternl) enabling users to store and manage eco-points.
• Backend APIs and database for eco-action logging, campaign management, and enterprise partnerships.
• MVP mobile/web version including user dashboard, eco-action submission, and token balance view.

Acceptance Criteria

• Fully functional MVP deployed on Cardano testnet.
• Users are able to log eco-actions, receive trial eco-points, and interact with their wallet.
• At least 50 internal testers actively engaged, providing feedback on usability, performance, and functionality.

Evidence of Completion

• Public testnet deployment link and project repository with smart contracts.
• Screenshots and/or demo video of the MVP showcasing logging of eco-actions and token issuance.
• Beta testing report documenting participation of 50+ users and summarizing their feedback.

Delivery Month

2

Cost

20000

Progress

60 %

Milestone Title

Community Pilot & Partnerships

Milestone Outputs

• Closed Beta program launched with 200 community members across multiple locations.
• Execution of 2 pilot campaigns (e.g., recycling for trees, separating plastic for recycling) where eco-actions are logged and rewarded on-chain.
• Initial business partnerships established with at least 2 enterprises funding or sponsoring eco-points/tokens.

Acceptance Criteria

• Over 1000 eco-actions successfully recorded on-chain during pilot campaigns.
• At least 80% of pilot users reporting positive satisfaction with app usability and incentive mechanism.
• Signed MOUs secured with at least 2 businesses participating in the Impact Membership model.

Evidence of Completion

• On-chain data records validating eco-actions and token rewards.
• Photos, videos, and written reports from pilot campaigns showing participation and results.
• Signed MOUs and letters of intent from at least 2 partnering businesses included in project evidence.

Delivery Month

2

Cost

16000

Progress

90 %

Milestone Title

Mainnet Launch & Expansion

Milestone Outputs

• Optimized GreenSnap platform with enhanced UX, faster transaction handling, and improved security measures.
• Smart contracts deployed on Cardano mainnet, enabling real-world eco-actions to be tokenized.
• Business funding gateway integrated, allowing enterprises to contribute directly to eco-campaigns.
• Nationwide launch campaign and “GreenSnap Day” event to drive mass adoption.
• Impact Dashboard live, tracking eco-actions, NFTs, and business engagement.

Acceptance Criteria

• At least 200 registered users successfully onboarded to the platform.
• More than 2000 eco actions logged and verified on-chain.
• At least 3 sponsoring businesses actively participating and funding eco campaigns.
• Public Impact Dashboard accessible, displaying live blockchain-based sustainability metrics.

Evidence of Completion

• On-chain mainnet transaction records demonstrating eco-actions and token issuance.
• Screenshots and public link to the live Impact Dashboard.
• Published 6-month sustainability & KPI report shared with the Catalyst community.
• Media coverage and documentation from the GreenSnap Day launch campaign.

Delivery Month

1

Cost

8500

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

We have carefully planned our budget to ensure each item of work is covered, aligned with our milestones and timeline. The total requested funding is 54,500 ADA over 6 months.

Personnel Costs (Core Team): 34,000 ADA

Covers the salaries of the project’s core team, proportional to local and industry-standard rates for blockchain and software development:

• Project Lead: 5,000 ADA (project management, reporting, strategy)
• CTO: 7,000 ADA (system architecture, blockchain integration, technical oversight)
• Developers (2x): 12,000 ADA (smart contracts, APIs, testnet/mainnet deployment)
• UI/UX Designer: 2,500 ADA (wireframes, flows, branding, user experience testing)
• Community Manager: 5,000 ADA (partnerships, community pilots, eco-action campaigns)
• QA & Documentation Specialist: 2,500 ADA (testing, bug tracking)

Technical Infrastructure & Tools: 6,000 ADA

• Hosting, servers, database management: 2,000 ADA
• Development & design software licenses: 1,000 ADA
• Security review / smart contract auditing (third party): 3,000 ADA

Community Engagement & Marketing: 8,000 ADA

• Pilot campaign logistics ( ditch cleaning event, eco-reward programs): 4,000 ADA
• Promotion & awareness (content creation, social media boosting, press outreach): 2,000 ADA
• Partnership development & onboarding: 2,000 ADA

Operations & Administration: 4,000 ADA

• Legal & accounting services: 1,500 ADA
• Project management tools & communication: 1,000 ADA
• Miscellaneous operational costs – 1,500 ADA

Reporting & Documentation: 2,500 ADA

• Periodic reports to Catalyst (text + visual documentation): 1,500 ADA
• Video/visual evidence for community updates: 1,000 ADA

Total Budget Requested: 54,500 ADA

To ensure financial feasibility and responsible planning, the budget has been calculated using an average conversion rate of 1 ADA = $0.71 USD, which reflects the mean market price of ADA over the past six months. While the current market price of ADA is higher, cryptocurrency markets remain inherently volatile.

By basing our calculations on the six-month average rather than the spot rate, we create a more conservative and reliable financial framework. This approach safeguards the project against short-term market fluctuations and ensures that planned deliverables can be achieved within the requested budget.

[Final Pitch] Value for Money

How does the cost of the project represent value for the Cardano ecosystem?

We believe this project represents an excellent use of Catalyst funds because it combines measurable social and environmental impact with a practical demonstration of Cardano’s blockchain capabilities. By funding this initiative, the community supports a solution that not only encourages sustainable behaviors but also brings thousands of new users, businesses, and NGOs into the Cardano ecosystem.

Here are the special values that the project brings to the Cardano community:

• Direct ecosystem growth: Every eco-action recorded generates an on-chain transaction, driving adoption of Cardano wallets, smart contracts, and tokens.
• Mainnet Deployment: The project concludes with a fully functioning DApp on Cardano moving beyond research or conceptual work, and aligning seamlessly with the goal of applying Cardano solutions to real-world daily life
• Community engagement: By partnering with NGOs, businesses, and influencers, we introduce thousands of new users to the Cardano ecosystem through an accessible “green action = reward” model.
• Reputation value: The project connects blockchain with sustainability, an area where Cardano already has strong alignment and global recognition.
• Scalable Model: Once the platform is up and running, it can be replicated in other regions and expanded to new use cases. Paving the way for similar projects focused on the environment and sustainability, potentially attracting a whole new segment of users and developers to the Cardano community

Justification of Costs

• The requested 54,500 ADA budget is distributed across four milestones, with each cost tied to specific deliverables, KPIs, and evidence.
• Personnel costs are the largest portion, covering software development, blockchain engineering, community management, and project coordination. In Vietnam, the average monthly wage for skilled blockchain developers ranges from $1,200–$2,000 USD (≈1,600–2,700 ADA), and for senior project managers between $1,500–$2,500 USD. Our budget allocations reflect these industry standards and remain proportional to typical freelance rates in both local and global contexts.
• Operational costs include infrastructure (servers, APIs, hosting), UI/UX design, prototype tools, and communication campaigns. These costs are aligned with standard SaaS startup expenses and remain modest compared to Western markets.
• Community engagement costs (pilot campaigns, partnerships, user acquisition) are kept cost-effective by leveraging strong existing networks such as Saigon Xanh, volunteer programs, and social media communities with millions of followers. If this project was started from scratch, it would have been significantly more expensive.
• A highly experienced team (10+ years in software & blockchain, proven NGO leadership, community building expertise) ensures efficient use of funds and minimizes waste.

This proposal offers strong value for money: for a moderate budget, the Catalyst treasury funds a fully developed DApp that drives real-world adoption, environmental impact, and ecosystem growth. The requested funds are reasonable, proportionate, and directly tied to measurable results, making this project a cost-effective and impactful investment for the Cardano community.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes