Blockchain across Oracle

Endorsement

This first phase of endorsement determines whether a transaction should be accepted or rejected. The endorsement process works as follows:

1. A client sends a signed proposal (transaction request) to the required peers. 
2. The endorsing peers execute the requested chaincode (smart contract) function on a specified channel, accessing the channel's ledger and world state. 
3. They capture the inputs and outputs and return them both as digitally signed Read and Write data, called RW sets, to the client. The execution itself is referred to as a "simulation," because the outputs are not persisted in the ledger until they are verified in the commitment phase.

The process also incorporates a transaction endorsement model. This model is designed ...