A knowledge graph and blockchain technologies are used in the web3 infrastructure project Origin Trail to provide an open, welcoming ecosystem. The open source and permissionless nature of the OriginTrail network promotes security and transparency. The multi-chain Decentralized Knowledge Graph (DKG), which functions on the three blockchains Ethereum, Polygon, and Gnosis, is one of the key components of OriginTrail.A knowledge graph and blockchain technologies are used in the web3 infrastructure project Origin Trail to provide an open, welcoming ecosystem. The open source and permissionless nature of the OriginTrail network promotes security and transparency. The multi-chain Decentralized Knowledge Graph (DKG), which functions on the three blockchains Ethereum, Polygon, and Gnosis, is one of the key components of OriginTrail.