Thank you!
The transaction fairness property of the Flare Consensus Protocol enables sources of randomness to be safely generated directly within a self-contained Flare Network. Then non-determinism can be achieved on Flare by incorporating the sources of randomness into a contract in the VM.
The transaction fees will be based on gas usage, and the payment model will support pre-paid or monthly subscriptions of gas ownership. We are currently working on full documentation for this accounting aspect and will revert fully soon.
The system is flexible on this and provisions for node operators setting their own prices within the same Flare Network. However, a node operator can’t change their pricing instantaneously, and only at predefined checkpoints. Similarly, changes of independent quorum slice decisions of nodes on the network take effect at predefined checkpoints instead of instantaneously.
Users will only directly pay the endpoint nodes that they submit transactions to, in order to simplify the user experience. These endpoint nodes make their own quorum slice decisions on the Flare Network, and pay a portion of the money that they receive from the user to these ‘downstream’ nodes, based on gas usage by that user.
The system would use this proof as a signal for linking gas allocation on the network to the user’s payments.