The Public Layer refers to the open and accessible part of a blockchain network. It allows anyone to participate, either by viewing transactions or contributing to the network, such as by validating transactions through mining or staking.In this layer, all transaction histories are transparent, and anyone can access this information freely. This transparency helps ensure accountability and reduces the likelihood of fraud. Moreover, the public nature supports decentralized governance, where decisions can be made collectively by participants rather than by a central authority.Many cryptocurrencies, like Bitcoin and Ethereum, operate primarily on a public layer, offering a platform for users to interact without restrictions. However, this openness can lead to challenges like scalability and privacy, prompting some projects to explore additional layers or solutions for enhanced functionality.Overall, the Public Layer is fundamental to how many blockchain systems operate, fostering trust and collaboration among users.