Deploying on-chain asset registries with immutable proofs of ownership, utilizing standards like ERC-721 for Non-Fungible Tokens (NFTs) and ERC-3643 for securities, is a pivotal best practice in blockchain-based asset management. The ERC-721 standard, introduced in 2018, provides a framework for creating unique digital assets on the Ethereum blockchain, allowing each token to represent a distinct item with verifiable ownership. This standard has been widely adopted for tokenizing digital art, collectibles, and virtual real estate. For tokenizing real-world assets and ensuring regulatory compliance, the ERC-3643 standard, also known as the Token for Regulated Exchanges (T-REX) protocol, offers a comprehensive framework. It integrates compliance mechanisms directly into the token’s smart contract architecture, incorporating identity verification and modular compliance rules to meet legal requirements. This standard is particularly suited for securities tokenization, enabling the representation of traditional financial instruments on the blockchain while ensuring adherence to regulatory standards. 

https://arxiv.org/html/2503.01111v1

https://tokeny.com/erc3643-the-token-standard-for-real-world-assets-rwas/