Primas is a platform for premium quality content based on DTCP (Distributed Trusted Content Protocol). Primas uses blockchain technology to ensure the credibility of content, uses economic incentives to accelerate the generation and circulation of high-quality content, and allows readers to see personalized, high-quality content through social recommendations. Traditional Internet applications can also use APIs to access Primas, immediately gaining access to the power Primas offers. Our blockchain-based solution is built on top of Ethereum and shares the same logic of smart contracts. Core data is written on the blockchain and content data is then stored using IPFS. Primas Nodes act as a common middle layer on the public chain running decentralized crawlers, DApp state cache, external services and other functions. On top of the Primas Node is our DApp. Other content platforms can also be linked to the Primas Ecosystem through this Node.