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TVM (Tagion Virtual Machine)

The TVM is responsible for executing the instructions in the contract ensuring the contract is compliant with Consensus Rules producing outputs. It send new, non-consensus, contracts to the Epoch Creator Service. The outputs produced by the contract are send to the Transcript Service.

Input:

  • A Contract-S (Signed) and DART archives received from the Collector Service.
  • A Contract-SC (Signed Consensus) and DART archives received from the Collector Service.

Output:

  • A Contract-SC (Signed Consensus) that is compliant with Consensus Rules sent to the Epoch Creator Service.
  • The draft output and input DART archives is sent to Transcript Service.

The service does the following:

  • Loads the Consensus Rules (only Tagion to start with).
  • Loads the input data.
  • Executes the instruction(s).
    • Ensures the instructions are valid.
    • Ensures the instructions follow the Consensus Rules.
    • Executes the instructions and produces draft output archives.
  • If input was Contract-S then a Contract-SC is sent to the Epoch Creator Service.
  • Sends output archives draft are send to Transcript Service.