Pixcross
Cross-Chain Lending for IP NFTs
Created on 29th June 2025
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Pixcross
Cross-Chain Lending for IP NFTs
The problem Pixcross solves
The Problem It Solves
Accessing liquidity using intellectual property or NFTs has traditionally been:
- Difficult — Most DeFi protocols only support fungible tokens like ETH or USDC.
- Inefficient — NFTs and IP assets often sit idle, generating no yield.
- Risky — Liquidations are abrupt, non-transparent, and often unfair.
- Isolated — Assets and lending opportunities are limited to a single blockchain.
- Centralized — Borrowing conditions are fixed and controlled by protocol maintainers.
What Pixcross Enables
- Pixcross is designed to make borrowing and lending against NFTs and IP:
- Simple – Use your NFT as collateral to instantly borrow stablecoins.
- Safe – Liquidations happen through transparent 24-hour auctions.
- Flexible – Anyone can create lending pools with custom terms.
- Cross-chain – Operates across Ethereum, Base, Arbitrum, and Avalanche via Chainlink CCIP.
- Permissionless – No KYC or gatekeeping; creators, collectors, and builders are all welcome.
Use Cases
- IP creators monetize digital assets without selling them.
- Collectors borrow stablecoins using idle NFTs.
- DeFi users earn yield by funding curated NFT-backed lending pools.
- Builders create specialized pools for specific IP verticals (e.g. music, gaming, film).
- Curators manage capital and earn performance-based fees.
Challenges I ran into
1. Cross-Chain Interoperability with Chainlink CCIP
One of our main goals was to enable seamless lending and borrowing across multiple chains — Ethereum Sepolia, Base, Arbitrum, and Avalanche. This presented the usual challenges of bridging assets, ensuring message security, and preventing replay or mismatched state updates.
Solution: We integrated Chainlink CCIP to securely bridge ERC-20 tokens and messages across supported chains. CCIP drastically simplified cross-chain stablecoin flows and protected against cross-chain vulnerabilities. We used CCIP to relay critical lending metadata and ensure consistent state across deployments.
2. Custom ERC-721 Bridging (NFTs Not Yet Supported by CCIP)
Since Chainlink CCIP currently supports ERC-20 but not ERC-721, we needed a solution to move NFTs representing IP across chains.
Solution: We built a custom NFT bridge for ERC-721 using burn-and-mint logic and coordinated it with CCIP messaging to track cross-chain ownership. This approach maintained trustlessness while preserving UX and opened the door for future CCIP-NFT upgrades.
3. Oracle-Based Valuation of NFTs/IP
Accurate valuation of NFTs and tokenized IP is critical for lending protocols — but on-chain pricing data for unique assets is sparse.
Solution: Chainlink’s modular oracle design enabled us to plug in custom price feeds and explore off-chain NFT appraisal mechanisms in parallel. For now, we implemented manual oracle updating with plans to expand using Chainlink Functions or third-party data sources in production.
4. Secure Liquidation Logic
Designing a 24-hour auction-based liquidation required precise timing and user fund safety guarantees.
Solution: Using CCIP to relay liquidation events across chains ensured global visibility and fairness, while our on-chain logic handled time-locked auctions and bid refunds automatically.
5. Gas Cost and Cross-Chain Latency
Multi-chain coordination can be costly and complex in terms of gas and message syncing.
Solution: CCIP reduced the overhead typically involved in cross-chain protocols by abstracting away low-level infrastructure and providing a secure, gas-efficient messaging standard.
By leveraging Chainlink CCIP and exploring its full potential in a real-world lending context, we were able to build a truly cross-chain DeFi protocol that reimagines the use of intellectual property onchain.
Tracks Applied (4)
Onchain Finance
Cross-Chain Solutions
AWS Credits for all Hackathon winners and runner ups
AWS
Avalanche Track
Avalanche
Technologies used
Cheer Project
Cheering for a project means supporting a project you like with as little as 0.0025 ETH. Right now, you can Cheer using ETH on Arbitrum, Optimism and Base.