Context based filtering within subsets of network nodes implementing a trading system

A system comprising:

• network nodes communicatively coupled in a peer-to-peer network, wherein the network nodes include a first subset of the network nodes and a second subset of the network nodes;
• wherein the first subset of the network nodes is configured to interface with at least a first external computing device;
• wherein the second subset of the network nodes is configured to interface with at least a second external computing device;
• wherein the first subset of the network nodes is configured to generate first messages having a first message type based on requests received from the first external computing device;
• wherein the first subset of the network nodes is configured to submit first events to the peer-to-peer network, the first events having payloads based on the first message type;
• wherein the network nodes are configured to use at least one directed acyclic graph (DAG) to attempt to reach consensus about timestamps in the first events;
• wherein the second subset of the network nodes is configured to receive events having different payload types from the peer-to-peer network and filter for any of the first events having the payloads based on the first message type;
• and
• wherein the second subset of the network nodes is configured to, when any of the first events having the payloads based on the first message type are received, convert the payloads into second messages that are sent to the second external computing device.