This image shows a multicloud network with Amazon (AWS) and an Oracle Cloud Infrastructure (OCI) region in Montreal.

Each cloud instance provides an internet gateway for following Internet users and peer clients, with two-way communication to and from AWS and OCI:

Primary Contractor Peer Client A
Engineering and Design Peer Client B
Construction Contractor Peer Client C
Suppliers Peer Client D
Other Participant Peer Client X

AWS includes PACE OS Application and PACE OS Custom Integration Tool. The internet gateway provides private connectivity between users on the internet and the PACE OS Application. Two-way communication occurs between the PACE OS Application and the PACE OS Custom Integration Tool.

OCI Region - Montreal has an availability domain with three fault domains. An Oracle Blockchain Platform instance spans all three fault domains.

The Montreal region provides 1 virtual cloud network (VCN) with the following gateways:

Internet gateway: Provides private connectivity between users on the internet and the REST API in the Oracle Blockchain Platform.
Service gateway: VCNs communicate with the following services in the Oracle Services Network over the Oracle network fabric without traversing the internet:
- Oracle Cloud Infrastructure Policies
- Oracle Cloud Infrastructure Logging
- Oracle Cloud Infrastructure Object Storage
- Oracle Cloud Infrastructure Identity and Access Management

The Oracle Blockchain Platform instance on OCI includes a REST API, REST Proxy and Oracle Cloud Infrastructure Events. The Oracle Blockchain Platform network contains the following:

Peer A: Peer A connects to each of the peers (Peer B, Peer C, Peer D, and Peer X)
Peer B: Peer B connects to Peer A, Peer D, and Peer X
Peer C: Peer C connects to Peer A, Peer D, and Peer X
Peer D: Peer D connects to each of the peers (Peer B, Peer C, Peer A, and Peer X)
Peer X: Peer X connects to each of the peers (Peer A, Peer B, Peer C, and Peer D)

In the OCI Region, information flows as follows:

From the users on the internet, through the OCI internet gateway to the REST API, then to the REST Proxy, and then to the peers in the blockchain network.
From the PACE OS Custom Integration Tool in AWS to Oracle Cloud Infrastructure Events in the Oracle Blockchain Platform instance, and then to the peers in the blockchain network.

Two-way communication occurs between the PACE OS Custom Integration Tool in AWS and Oracle Cloud Infrastructure Events in the Oracle Blockchain Platform instance on OCI. Two-way communication also occurs between the Oracle Cloud Infrastructure Events and REST Proxy on OCI.