Presearch is an open, decentralized search engine that rewards community members with Presearch Tokens for their usage, contribution to, and promotion of the platform. In a world where one company controls 77% of all searches, influencing trillions of dollars in spending, shaping perceptions and effectively acting as the primary gatekeeper to the Internet, a new, open and community-driven search engine is a necessity. Presearch has an innovative go-to-market strategy to target the most frequent searchers - web workers - and gain early adoption, on our way to releasing future versions of the open source platform that will utilize a blockchain-based index, curated by the community.
Lambda is a fast, safe, and scalable blockchain infrastructure project, which provides decentralized applications (DAPPs) data storage capabilities with unlimited scalability and fulfills services such as multi-chain data co-storage, cross-chain data management, data privacy protection, PDP, and distributed intelligent computing through logic decoupling and independent implementation of Lambda Chain and Lambda DB. Through the logical decoupling and separate implementation of Lambda Chain and Lambda DB, we provide infinitely scalable data storage capabilities to decentralized applications and achieve Multi-chain data cooperative storage, cross-chain data management, data privacy protection, data ownership proof, distributed intelligent computing and other services. Additionally, as the underlying service of blockchain, Lambda Chain provides millions of requests per second (RPS) through Sharding technology, which can grow as the scale of the system expands; and it also offers technology service capabilities for future unlimited expansion through sub-chain technology. We believe that all storage projects follow the core requirement of Provable Data Integrity.Also, it is crucial for data projects to store data in an infeasible storage node and make them trusted and secure, in the academic world, there are mainly two approaches which are Provable Data Possession (PDP) and Proofs of Retrievability (POR) depending on the usage scenarios. Lambda has applied these two approaches in blockchain through academic research and engineering verification, which has eliminated the core obstacles of decentralized storage.