The Green Chain — YuhangHan.design

The Green Chain: Package Deposit

Main Role: UX Design, Project Leader

The Green Chain: Package Deposit-refund System

At the Hedera Guardian Chain Hackathon, our team proposed a method to motivate participants to reuse packaging and standardize the recycling process by creating NFTs for packaging and assigning them consensus value. Packaging NFTs can be traded by scanning the QR code on the packaging.

In real-time settlement for single transactions, Hedera Guardian features fast speed and low energy consumption. So this makes it possible for real-time small-volume batch trading.

Inspiration:
The Bottle Deposit-refund system in Germany

The bottle deposit system is widespread in Germany for collecting used drink containers and recycling them. To enable consumers to return them after use and then recycle them, Deutsche Pfandsystem GmbH (DPG) charges a so-called bottle deposit of 25 cents on many suitable drink containers. Consumers pay the deposit in addition to the purchase price when buying the drinks and receive it back in full if they return them correctly in a supermarket.

From joaquincorbalan

Problem:
Dependence on special physical production technology

The recycling of beverage bottles relies on labels printed with special ink and scanning machines at fixed collection points. This system leads to the recycling behavior that can only be fixed in some supermarkets.

In the case of express packaging recycling, express cartons are large and difficult for ordinary users to carry to recycling points. Is it possible for couriers to directly help users recycle cartons at home?

From © Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons), CC BY-SA 4.0

Solution:
Packaging NFT and QR-Code for Trading

So to make this model easy and fast to apply to packaging, we believe that the combination of NFT on Hedera Guardian and QR codes will free the model from its reliance on special ink and special machines, and thus make the "deposit system" more attractive to people.

Value Consensus in Blockchain

Within a limited area (e.g. in the context of German laws and regulations), couriers have formed a non-profit organization, Package Deposit, which develops a smart contract technology based on Hedera that can generate a unique QR code for each box, and this QR code can only be generated by the consortium blockchain nodes (e.g., permitted express packaging producers) through encryption technology.

The organization is also responsible for standardizing the value of NFTs of different models and materials as a basis for the circulation of deposits. As an example, a paper box with a size of 300*300*200mm is assumed to have a token value of €1.0 per new package.

Stakeholders and System Design

Commodity sellers, express carriers, importers and exporters, freight forwarders, recipients, and other intermediate handlers need to scan the QR code to request the transfer of the ownership of the package to the holder of the package and pay a deposit to the holder in the form of e-wallet payment.

If the QR code is damaged, the courier carton cannot be adopted, and the NFT value is reset to zero and can only be sold or recycled by weighing.

Showcase

Takeaways

1. Analyzing the value proposition differences between stakeholdersWe learned how to build business logic on holistic solutions by analyzing the value proposition differences between stakeholders.

2. Understanding the advantages of implementing democracy in blockchain projects in terms of value consensus and the challenges of complianceWe have absorbed a large number of blockchain application cases and fully understand the unlimited potential and realistic obstacles of blockchain applications. For example, there are differences in compliance with laws regulations, and product standards in different countries. This leads to difficulties in exchanging currencies when regulating the value of packaging in different regions.

Project 1

Custom-made Mouse

Startup Launching

Project 2

AIsurance

AI Agent for Insurance

Project 3

Package Deposit

Blockchain for Sustainability

Welcome to contact me:

yuhanghan97@gmail.com