Crowdera

Crowdera Anonymous Crowd Donation Platform with NFT Badges

Description: Crowdera is a privacy-first, text-based anonymous donation platform designed for individuals who want to give quietly and meaningfully. Unlike traditional crypto donation platforms where wallet addresses and transaction history are publicly visible, Crowdera enables donors to contribute without linking their identity to a donation. Each donor receives a unique NFT badge based on predefined criteria, such as amount, frequency, or supported cause — serving as a digital symbol of silent generosity.

Crowdera removes the pressure of visibility and public recognition, creating a safe space for altruism without expectation. Whether it's disaster relief, education, health, or community projects, users can find and support causes that matter — all without revealing themselves.

Key Features:

Anonymous donations with no social pressure or wallet tracking

NFT badges for donors, based on transparent but private logic

Multi-cause and multi-event campaign structure

Minimalist, text-first interface for fast access and low-friction giving

No login, no wallet connection required (if using off-chain or hybrid systems)

Simple backend API for campaign creation, NFT issuing, and badge logic

Similar to but Different From:

Giveth: Offers transparent donations and public reward systems (non-anonymous).

The Giving Block: Large-scale fiat-focused donations, lacks anonymity or tokenized recognition.

Crowdera: Prioritizes donor privacy, focuses on intention > identity, and delivers elegant recognition through minimalist design and NFTs.

Philosophy:

Make the world better — not louder. Crowdera is for those who believe in change without applause.

Crowdera is built on a foundation of Ethereum’s evolving account abstraction capabilities, specifically utilizing EIP-7702. This proposal enables users to operate EOAs as smart contract accounts, allowing programmable behaviors while retaining backward compatibility with existing wallets.

To create a donation campaign, the createCampaign() function on CampaignManager.sol is invoked, initializing a campaign instance with metadata such as the campaign name, target amount, and deadline. On the donor side, the frontend—built using Viem for efficient Ethereum interaction—constructs a batched multicall transaction, which encapsulates donation logic and supporting operations.

Rather than executing the transaction directly, the donor signs an off-chain authorization (aligned with EIP-7702 standards), which is then sent to the backend via an API. This authorization is relayed to a designated operator, who submits the transaction on behalf of the user. As a result, the user’s EOA does not directly appear in transaction initiator fields on block explorers—unless one inspects the raw calldata—thereby achieving “soft anonymity.”

This approach balances privacy with usability. While not fully private in a cryptographic sense, the use of operator-submitted transactions obfuscates the donor’s identity in most surface-level blockchain analytics tools. Additionally, it enables gasless donation flows, since the operator can sponsor gas, and paves the way for integrating features like Soulbound NFT rewards and AI-based campaign tagging in future iterations.

By abstracting both identity and transaction costs, Crowdera reimagines charitable giving in a way that prioritizes discretion, usability, and extensibility.