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Bridge Pass

A new way to send cross-chain and on-chain crypto using gift cards​.

Bridge Pass

Created At

Scaling Ethereum 2023

Winner of

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👯 Polybase — Pool Prize

Project Description

Bridge Pass offers a unique cross-chain gift card solution, allowing you to send gift cards to your loved ones across different blockchain networks. With Bridge Pass, you can easily purchase a gift card and let the recipient redeem it on their desired chain. Additionally, Bridge Pass also supports same-chain gift cards for those who prefer to redeem on the same network. ​

Bridge Pass leverages the ERC-721 NFT standard to create Soul Bound Tokens, facilitating seamless cross-chain asset transfers through Connext Smart Contracts. For on-chain transfers, Gift Card employs the same ERC-721 NFT standard to ensure a smooth, secure, and efficient process.​

Users can issue a pass on the Optimism Mainnet for their friends, who can then redeem it on the Arbitrum Mainnet, supporting cross-chain functionality. If a pass is issued on the Goerli network, it can be redeemed on Optimism Goerli, allowing for seamless transfers between compatible chains.

Same-chain Gift Card solution is a simple and user-friendly way to send and receive gift cards within the same blockchain network. This service provides an alternative to cross-chain gifting, catering to users who prefer to keep their transactions within a single network.​

Supported chains for Gift Card include Scroll, Taiko, Optimism Mainnet, Optimism Goerli, ZK EVM, and more.

Both Gift Cards have a value of 0.0001 ETH, which will be transferred when the user redeems the Gift Card.

How it's Made

Bridge Pass is built using various cutting-edge technologies. We leverage Connext Smart Contracts to enable cross-chain asset transfers. Polybase serves as our database to store all transaction hashes, allowing users to access and review them in the future. This is crucial, as without Polybase, storing and retrieving these hashes would be challenging. Bridge Pass has been deployed on several chains, including Optimism Mainnet, Arbitrum Mainnet, Scroll, Taiko, ZK EVM, and more.

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