Method and system to ensure trustworthy data exchange in a distributed ledger system

A node comprising a processor and memory, the node communicatively couplable to a sensor, the memory storing computer program instructions executable by the processor, the computer program instructions, when executed by the processor, causing the processor to:

• receive, from a sensor that is communicatively coupled with the node, a signal indicative of a physical property sensed by the sensor;
• generate, based on the received signal, an initial transaction record;
• receive further initial transaction records from other nodes communicatively coupled to the node;
• forming a localised consensus of a transaction record to be added to a distributed ledger based on the initial transaction record generated by the node and the further initial transaction records received from the other nodes;
• generate a transaction record using the localised consensus;
• and
• adding the transaction record to a distributed ledger.

A non-transitory storage medium storing computer program instructions for execution by a processor in a node communicatively couplable to the node, the computer program instructions, when executed, causing the processor to:

• receive, from a sensor that is communicatively coupled with the node, a signal indicative of a physical property sensed by the sensor;
• generate, based on the received signal, an initial transaction record;
• receive further initial transaction records from other nodes communicatively coupled to the node;
• forming a localised consensus of a transaction record to be added to a distributed ledger based on the initial transaction record generated by the node and the further initial transaction records received from the other nodes;
• generate a transaction record using the localised consensus;
• and
• adding the transaction record to a distributed ledger.