# References

## References

This page lists the key references and resources cited throughout the Checks Platform documentation. These sources provide additional context, technical specifications, and background information on the standards and concepts utilized in the platform.

## Ethereum Standards <a href="#ethereum-standards" id="ethereum-standards"></a>

1. **Ethereum Improvement Proposal 6551 – Non-fungible Token Bound Accounts** Ethereum Magicians discussion and EIP draft [eips.ethereum.org](https://eips.ethereum.org/)
2. **Ethereum Improvement Proposal 4626 – Tokenized Vault Standard** Defines standard API for yield-bearing vaults (ERC-20 shares for a single underlying asset) [eips.ethereum.org](https://eips.ethereum.org/)
3. **Ethereum Improvement Proposal 2535 – Diamond Standard (Multi-Facet Proxy)** Enabling modular upgradeable smart contract systems with unlimited contract size [eips.ethereum.org](https://eips.ethereum.org/)

## Industry Articles and Resources <a href="#industry-articles-and-resources" id="industry-articles-and-resources"></a>

1. **TrustSwap Press Release (Oct 13, 2020)** "TrustSwap Makes Crypto Swaps and Escrow Services Simple, Fast, and Cheap", GlobeNewswire Describes early DeFi escrow and time-locked payment solutions, highlighting the lack of prior options [globenewswire.com](https://globenewswire.com/)
2. **Lightspeed Venture Partners Blog (June 23, 2021)** Nicole Alvino, "DeFi-ing the rules of traditional finance" Discusses how DeFi replaces intermediaries for escrow and custody with smart contracts [lsvp.com](https://lsvp.com/)
3. **TokenMinds Blog** "ERC-6551: Empowering NFTs with Token-Bound Accounts" Overview of ERC-6551 capabilities, including NFTs holding assets, vesting use-cases, and increased NFT autonomy [tokenminds.co](https://tokenminds.co/)

## Oracle and Protocol Documentation <a href="#oracle-and-protocol-documentation" id="oracle-and-protocol-documentation"></a>

1. **UMA Documentation** "How does UMA's Optimistic Oracle work?", UMA Docs (2023) Explains UMA's oracle mechanism for verifying real-world data on-chain with a dispute period [docs.uma.xyz](https://docs.uma.xyz/)
2. **QuickNode Guide (Mar 18, 2025)** "How to Use ERC-4626 with Your Smart Contract" Highlights the adoption of ERC-4626 by Yearn v3 and describes yield vault operations [quicknode.com](https://quicknode.com/)

## Blockchain and Token Technology <a href="#blockchain-and-token-technology" id="blockchain-and-token-technology"></a>

1. **RapidInnovation Blog (2024)** Jesse Anglen, "Building a DeFi Application on Polygon: From Concept to Launch" Describes benefits of Polygon for DeFi, notably lower gas fees and fast transactions ideal for high-frequency operations [rapidinnovation.io](https://rapidinnovation.io/)
2. **Bitbond Blog** "Grasping Deflationary Tokens: Deep Dive with TokenTool" Explains deflationary token models and token burning as a mechanism to reduce supply [bitbond.com](https://bitbond.com/)

## Cross-Chain Technology <a href="#cross-chain-technology" id="cross-chain-technology"></a>

1. **LayerZero Documentation** "Sending Tokenized Assets" Introduces the Omnichain Fungible Token (OFT) and Omnichain NFT standards for cross-chain token deployment [docs.layerzero.network](https://docs.layerzero.network/)
2. **ChainCatcher Article (Apr 3, 2022)** "LayerZero vs. Chainlink CCIP: The Battle of Cross-Chain Bridge Protocols" Provides insight into cross-chain messaging enabling transactions across multiple blockchains [chaincatcher.com](https://chaincatcher.com/)

## Additional Resources <a href="#additional-resources" id="additional-resources"></a>

1. **Yearn Finance V3 Documentation** "yVaults V3 Overview" Describes Yearn's modular vault strategy architecture and the use of ERC-4626 tokenized strategies [docs.yearn.fi](https://docs.yearn.fi/)
